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1.
Hand (N Y) ; 9(3): 384-8, 2014 Sep.
Article in English | MEDLINE | ID: mdl-25191172

ABSTRACT

BACKGROUND: There is limited published information about long-term outcomes and recurrence rates following single-portal endoscopic carpal tunnel release. METHODS: We reviewed symptom and function outcomes from a prospectively collected database of patients who underwent single-portal endoscopic carpal tunnel release at a minimum of 8 years follow-up. Out of 207 patients in the original database, we were able to confirm correct current contact information for 106 patients. Of these, 91 patients with 115 single-portal endoscopic carpal tunnel releases agreed to participate. All of these patients were eligible for this long-term follow-up study based on documented preoperative and 6-month postoperative Levine-Katz questionnaire scores. Patients then completed a current update of the Levine-Katz questionnaires to assess function and symptom outcomes at latest follow-up. RESULTS: The average 6-month postoperative scores were significantly lower compared with the average preoperative scores and were maintained at long-term follow-up. There were no significant differences in average change in scores at long-term follow-up compared to 6-months postoperative. CONCLUSIONS: Single-portal endoscopic carpal tunnel release is an effective surgical treatment for carpal tunnel syndrome. Low recurrence rates and maintenance of low symptom and function scores can be expected at 8 to 10 years following this technique.

2.
J Hand Surg Eur Vol ; 36(8): 642-7, 2011 Oct.
Article in English | MEDLINE | ID: mdl-21636619

ABSTRACT

The long-term outcomes of patients with carpal tunnel syndrome who were scheduled for release but did not proceed to surgery were compared to patients who underwent surgery, matched on preoperative symptom scores. Both groups completed the Levine-Katz questionnaire 6 years after enrolment to our multicentre carpal tunnel syndrome outcomes database. Symptom and function scores improved for the surgical (n = 24) and non-surgical (n = 36) groups (p < 0.001). Improvement in symptom scores was greater in surgical patients compared to non-surgical patients (n = 24 matched pairs; p = 0.007) but improvement in function scores between groups was not significantly different (p = 0.13). For surgical patients, function and symptom scores improved by 6 months and were unchanged at 6 years. Patients planning surgical release can expect symptomatic and functional benefits within 6 months. Overall improvement was experienced by both groups, with a superior outcome achieved with surgery. The symptoms of carpal tunnel syndrome may improve without surgery, but further studies are needed to understand the natural history of the disorder.


Subject(s)
Carpal Tunnel Syndrome/physiopathology , Carpal Tunnel Syndrome/surgery , Treatment Outcome , Treatment Refusal , Adult , Aged , Aged, 80 and over , Female , Humans , Male , Middle Aged , Recovery of Function , Severity of Illness Index , Surveys and Questionnaires
3.
Ann R Coll Surg Engl ; 89(8): 785-8, 2007 Nov.
Article in English | MEDLINE | ID: mdl-17999820

ABSTRACT

INTRODUCTION: Carpal tunnel decompression is the most commonly performed surgical procedure within a hand unit. Although very effective, the complications following the procedure can be significant. In an attempt to identify the causes of such complications, we assessed whether seniority of the surgeon impacts on outcome for open carpal tunnel decompression. PATIENTS AND METHODS: Data were jointly and prospectively gathered from two units from either side of the Atlantic - the Pulvertaft Hand Center, UK and the Curtis Hand Center, USA. The aim of the study was to assess outcome following carpal tunnel decompression. Completed data were gathered following open carpal tunnel decompression on 352 hands. Surgeons of a consultant grade had performed 123 of these procedures whilst surgical trainees had performed 229 of the procedures. Assessment was by Levine Katz questionnaire results, Semmes-Weinstein testing, grip strength and pinch grip strength testing performed both pre-operatively and 6 months' postoperatively. Complications following the procedure were also recorded. RESULTS: Mean results were found to be better in those patients where the surgeon was of a consultant grade. However, this was only found to be of statistical significance on Semmes-Weinstein testing. Complications following the procedure were also noted to be higher in the group of patients operated on by trainee grades. CONCLUSIONS: Our results show the carpal tunnel decompression performed by a surgeon of consultant grade offers slightly better results in objective neurological testing when compared with those performed by a more junior grade.


Subject(s)
Carpal Tunnel Syndrome/surgery , Decompression, Surgical/standards , General Surgery/standards , Medical Staff, Hospital/standards , Postoperative Complications/etiology , Body Mass Index , Cohort Studies , Consultants , England , Humans , Middle Aged , Prospective Studies , Treatment Outcome
4.
J Hand Surg Br ; 31(4): 401-6, 2006 Aug.
Article in English | MEDLINE | ID: mdl-16687196

ABSTRACT

Six hundred and thirty five carpal tunnel decompressions in 490 patients were studied prospectively in two hand surgery centres to assess the effect of increasing age on the outcome after surgery. The outcome was assessed using the Levine-Katz carpal tunnel questionnaire, Tinel's sign, Phalen's test, Semmes-Weinstein monofilaments and pinch and grip strengths. Assessments were made pre-operatively, at 2 weeks and 6 months postoperatively. Information was also sought concerning co-morbid conditions. Cases were divided into four groups (less than 40 years of age, 40 to 60, 61 to 80, and over 80 years of age). Patients improved significantly in all age groups after carpal tunnel surgery. Despite a relatively high number of co-morbidities, older patients had an acceptable complication rate and their improvement was comparable to all other age groups.


Subject(s)
Aging/physiology , Carpal Tunnel Syndrome/surgery , Preoperative Care , Adult , Aged , Aged, 80 and over , Carpal Tunnel Syndrome/complications , Female , Hand Strength , Humans , Male , Middle Aged , Prospective Studies , Surveys and Questionnaires , Tensile Strength
5.
J Hand Surg Br ; 30(6): 581-4, 2005 Dec.
Article in English | MEDLINE | ID: mdl-16131466

ABSTRACT

There are three commonly used methods of digital block anaesthesia: viz. subcutaneous, metacarpal and transthecal. A randomized, single-blinded study on 50 healthy volunteers was performed to determine time to onset, pain level and preference. Volunteers each received all three blocks, serving as their own controls. Time to onset was significantly longer (P<0.001) for the metacarpal block than for the subcutaneous or transthecal blocks. There was no significant difference in average pain level between the methods, as measured on a scale from 1 to 10. Volunteers chose the subcutaneous block (43%) as their first choice over the metacarpal block (33%) or the transthecal block (25%). The transthecal block had prolonged discomfort lasting 24 to 72 hours after injection in 20 subjects (40%). These findings suggest that subcutaneous block is effective and preferred by healthy volunteers for digital anaesthesia.


Subject(s)
Nerve Block/methods , Fingers , Humans , Single-Blind Method
6.
J Am Geriatr Soc ; 49(7): 877-83, 2001 Jul.
Article in English | MEDLINE | ID: mdl-11527478

ABSTRACT

OBJECTIVE: As part of a larger study to describe indices of recovery during the year after hip fracture, the current prospective study investigated longitudinal changes in serum and urine markers of bone metabolism for the year after hip fracture and related them to bone mineral density (BMD). DESIGN: A representative subset of participants provided serum and urine samples and had bone density measured at 3, 10, 60, 180, and 365 days postfracture. SETTING: Two Baltimore hospitals. PARTICIPANTS: The subjects were 205 community-dwelling, white women age 65 and older with fresh proximal femur fractures. MEASUREMENTS: Samples were assayed for specific bone-related proteins and bone turnover markers, including serum osteocalcin (OC), procollagen type 1 carboxy-terminal extension peptide (PICP), bone-specific alkaline phosphatase (BAP), and urinary deoxypyridinoline (DPD) cross-links. Selected hormonal regulators of bone metabolism, including parathyroid hormone (PTH), calcitonin (CT), 1,25-dihydroxy vitamin D(3) (1,25 (OH)(2)D), and estrone (E(1)) were measured from serum samples. Repeated measures analyses were used to evaluate postfracture changes in each of the markers. RESULTS: BAP, OC, and PICP were most active during the early postfracture period (3-60 days). BAP and OC remained elevated at 365 days compared with 3 days. DPD rose 48% from 3 days to 60 days, but this difference was not statistically significant. PTH and 1,25 (OH)(2)D increased steadily and significantly from 3 to 365 days. E(1) was highest at baseline and decreased at each time point, whereas CT showed no significant changes. When subjects were stratified into high-, medium-, and low-BMD groups based on their measurement at 3 days, both osteoclastic and osteoblastic markers in the low-BMD group displayed exaggerated and different patterns over time compared with the other groups. CONCLUSION: Currently, the standard treatment of care for hip fractures still results in high morbidity and mortality and failure to regain prefracture quality of life. Gaining an understanding of bone cell activity in these patients after hip fracture, derived by measuring markers longitudinally during recovery, provides a baseline by which to measure the effectiveness of new interventions to improve recovery from hip fracture.


Subject(s)
Bone Density , Bone Remodeling , Bone and Bones/metabolism , Fracture Healing , Hip Fractures/blood , Hip Fractures/urine , Absorptiometry, Photon , Aged , Aged, 80 and over , Alkaline Phosphatase/blood , Amino Acids/urine , Biomarkers/blood , Biomarkers/urine , Calcitonin/blood , Calcitriol/blood , Estrone/blood , Female , Hip Fractures/pathology , Hip Fractures/surgery , Humans , Osteocalcin/blood , Parathyroid Hormone/blood , Peptide Fragments/blood , Procollagen/blood , Prospective Studies , Recovery of Function , Time Factors , Treatment Outcome
7.
Am J Obstet Gynecol ; 182(5): 1045-7, 2000 May.
Article in English | MEDLINE | ID: mdl-10819822

ABSTRACT

OBJECTIVE: The World Health Organization laboratory manual, last revised in 1992, states that the normal pH of semen ranges from 7.2 to 8.0. Our experience has been that values in our patient population are consistently higher than this range. To confirm this we reviewed >1100 semen records. STUDY DESIGN: All patient records from January 1994 to December 1998 that had semen pH measurements and sperm concentration and motility measurements recorded were included in this study. We also determined the semen pH in a subgroup of patients who underwent sperm preparations for intrauterine inseminations that resulted in documented pregnancies. Histograms were used to describe the populations and the Mann-Whitney test was used for group comparisons. RESULTS: For all patients (N = 1199) mean (+/-SD) semen pH was 8.2 +/- 0.3. The range was 7.3 to 9.5, with pH <8.0 in 32% of the samples. The semen pH among the patients with normal sperm concentration and motility values (n = 602) was not different from that among those with abnormal parameters (n = 597). Mean semen pH value was 8.2 for both groups. In a small group of patients (n = 19) whose sperm preparations had been documented to result in a clinical pregnancy after intrauterine insemination the semen pH was 8.3 +/- 0.3, with a range of 7.9 to 8.7. CONCLUSION: Our study questions the reference range defined by the World Health Organization for semen pH of 7.2 to 8.0. The mean values that we observed in our population, including those of samples from patients with normal sperm parameters, consistently lay outside that range.


Subject(s)
Semen/physiology , Spermatozoa/abnormalities , Adult , Female , Humans , Hydrogen-Ion Concentration , Insemination, Artificial , Male , Pregnancy , Reference Values , Sperm Count , Sperm Motility
8.
Am J Obstet Gynecol ; 182(5): 1093-5, 2000 May.
Article in English | MEDLINE | ID: mdl-10819837

ABSTRACT

OBJECTIVE: The aim of this study was to determine the effects of sildenafil and phentolamine on sperm motility in vitro. STUDY DESIGN: Semen or washed sperm was mixed with various doses of sildenafil or phentolamine and analyzed for motility during a 30-minute period. The pH was measured for each of the samples tested. Statistical analyses were performed with analysis of variance. RESULTS: A 200-microg/mL dose of sildenafil had no effect on sperm motility. However, the highest dose (2000 microg/mL) significantly reduced motility by about 50%. The pH was reduced in this high-dose sample. The lowest dose of phentolamine (20 microg/mL) had no effect, whereas a dose of 200 microg/mL resulted in a significant reduction in sperm motility. The highest dose (2000 microg/mL) stopped virtually all sperm from moving. CONCLUSION: This study demonstrated a direct dose-related effect of phentolamine on reducing sperm motility. Only the highest dose of sildenafil had an effect, which may have been caused by a decline in pH.


Subject(s)
Erectile Dysfunction/drug therapy , Phentolamine/pharmacology , Piperazines/pharmacology , Sperm Motility/drug effects , Dose-Response Relationship, Drug , Humans , Hydrogen-Ion Concentration , Kinetics , Male , Phentolamine/administration & dosage , Piperazines/administration & dosage , Purines , Sildenafil Citrate , Sulfones
9.
Am J Obstet Gynecol ; 182(5): 1099-102, 2000 May.
Article in English | MEDLINE | ID: mdl-10819839

ABSTRACT

OBJECTIVE: The purpose of this study was to determine the effects of raloxifene on the uterine responses to both estradiol and the environmental estrogens 1,1,1-trichloro-2, 2-bis(p-chlorophenyl)ethane and methoxychlor in immature mice. STUDY DESIGN: Immature female mice received the following compounds alone or in combination: sesame oil (control), 17beta-estradiol 1 mg/kg body weight, tamoxifen 1 mg/kg body weight, raloxifene 5 mg/kg body weight, 1,1,1-trichloro-2,2-bis(p-chlorophenyl)ethane 10 mg/kg body weight, and methoxychlor 10 mg/kg body weight. The animals were treated subcutaneously once a day for 5 consecutive days with the compound or compounds of interest in 0.1 mL sesame oil. Approximately 24 hours after the final treatment the animals were killed and the uteri were excised, stripped of remaining fat and mesentery, and weighed. Groups were analyzed with analysis of variance. RESULTS: Estradiol increased the mean (+/-SE) weight from 20 +/- 6.4 mg (as measured in the control group) to 77 +/- 6.2 mg. Tamoxifen increased uterine weight to 60 +/- 6.2 mg; however, raloxifene had no effect on uterine weight. Both 1,1,1-trichloro-2, 2-bis(p-chlorophenyl)ethane and methoxychlor increased uterine weight significantly, to 82 +/- 2.4 mg and 35 +/- 6.0 mg respectively. When raloxifene was coadministered with 17beta-estradiol it did not block the increase in uterine weight; however, when raloxifene was coadministered with 1,1,1-trichloro-2, 2-bis(p-chlorophenyl)ethane or methoxychlor, it completely blocked the uterine weight gain induced by either xenoestrogen. CONCLUSION: Raloxifene blocked the xenoestrogens 1,1,1-trichloro-2, 2-bis(p-chlorophenyl)ethane and methoxychlor but did not block 17beta-estradiol in the mouse model described. These results suggest that the xenoestrogens exert their estrogenic activities through a different site on the estrogen receptor or through a different mechanism than 17beta-estradiol.


Subject(s)
DDT/pharmacology , Estrogen Antagonists/pharmacology , Estrogens, Non-Steroidal/pharmacology , Methoxychlor/pharmacology , Raloxifene Hydrochloride/pharmacology , Uterus/drug effects , Animals , Drug Interactions , Estradiol/pharmacology , Female , Mice , Organ Size/drug effects , Tamoxifen/pharmacology , Uterus/anatomy & histology
10.
Fertil Steril ; 73(4): 687-93, 2000 Apr.
Article in English | MEDLINE | ID: mdl-10731526

ABSTRACT

OBJECTIVE: To determine the rate at which mild acidity immobilizes and kills human sperm and to evaluate an acidic microbicide, BufferGel, for sperm immobilization. DESIGN: Controlled in vitro study. SETTING: An academic research university and hospital andrology lab. PATIENT(S): Eight volunteer male sperm donors. INTERVENTION(S): Semen samples were treated with hydrochloric acid (HCl) or BufferGel. MAIN OUTCOME MEASURE(S): Sperm motility was measured by using a computerized automated semen analyzer and video microscopy. Sperm membrane permeability and intracellular pH were measured by using fluorescent techniques. RESULT(S): In semen acidified with HCl to pH 4.0, sperm were rapidly immobilized (within 1 min) and were irreversibly immobilized (killed) within 10 minutes. The speed of immobilization and of killing were both linearly proportional to hydrogen ion activity over a pH range of 7.5-4.0. Across the same range, the intracellular pH of human sperm equilibrated to within 0.5 pH units of extracellular pH within 1-2 minutes. BufferGel immobilized sperm significantly faster than HCl from pH 4.0-6.0. CONCLUSION(S): Exposure to mild acidity rapidly acidifies the intracellular pH of human sperm and is rapidly spermicidal. BufferGel accelerates acid immobilization of sperm.


Subject(s)
Spermatozoa/chemistry , Spermatozoa/physiology , Acids , Cell Death , Cell Membrane Permeability , Humans , Hydrochloric Acid/chemistry , Hydrogen-Ion Concentration , Male , Propidium/pharmacokinetics , Sperm Motility , Time Factors
11.
J Gerontol A Biol Sci Med Sci ; 54(9): M467-73, 1999 Sep.
Article in English | MEDLINE | ID: mdl-10536650

ABSTRACT

BACKGROUND: Hip fracture in the aged is a major health problem, especially considering the increasing proportion of the elderly in the population. This study examines changes in circulating levels of hormones, which are purported to affect bone metabolism, in response to hip fracture in postmenopausal women. METHODS: Patients consisted of women ages 65 and older who had surgery within 2 days of fracture. Serum samples were obtained at 3, 10, 60, 180, and 360 days postfracture. Healthy women without hip fractures from the same age range served as a control group (n = 17). Hormones were determined by radioimmunoassay. Subjects with fractures in the neck region of the femur (n = 78) were compared to subjects with fractures in the trochanteric region (n = 88). RESULTS: Estrone concentration (47.6 +/- 5.7 pg/mL; mean +/- SEM) at 3 days postfracture was elevated (p < .001) compared to control levels of 20.7 +/- 4.6 pg/mL. By 2 months, levels had declined to control levels. Androstenedione and the adrenal hormones, DHEAS and cortisol, displayed similar responses. Parathyroid hormone (PTH) levels were not significantly different from the control concentration at 3 days following fracture, but increased (p < .001) during the year following fracture. Calcitonin concentrations were much higher (p < .001) 3 days postfracture (42.1 +/- 3.7 pg/mL) compared to controls without fracture (9.8 +/- 3 pg/mL). Except for testosterone, no differences could be attributed to fracture location. Only PTH, with concentrations higher in the older age groups (p < .001), showed an age-related response. CONCLUSIONS: Following hip fracture, there are some dramatic responses in hormones that purportedly are mechanistically important in bone metabolism. These changes include transient increases in steroid hormones, chronic elevations in calcitonin, and rising levels of PTH during the year after fracture.


Subject(s)
Aging/blood , Calcitonin/blood , Hip Fractures , Parathyroid Hormone/blood , Postmenopause , Steroids/blood , Aged , Aged, 80 and over , Female , Humans , Postoperative Period
12.
J Surg Res ; 85(1): 66-70, 1999 Jul.
Article in English | MEDLINE | ID: mdl-10383839

ABSTRACT

BACKGROUND: Small bowel resections following radiotherapy for gynecologic cancers have resulted in significant rates of morbidity and mortality. The objective of this study was to evaluate the effect of rGH on the breaking strength and thickness of radiation-injured ileal anastomoses in an animal model. MATERIALS AND METHODS: Sprague-Dawley rats were treated with 1800 cGy of pelvic irradiation in a single fractionation. Seventeen weeks following pelvic teletherapy an ileo-ileostomy was performed. The rats were randomized to receive 2.0 mg/kg/day of rGH for 7 days or placebo. On the seventh postoperative day a segment of ileum surrounding the anastomosis was resected. The segments were tested for breaking strength or were histologically measured for anastomotic thickness. RESULTS: The ileal anastomotic breaking strength in the rGH group was 181 +/- 8.4 g (mean +/- standard error). The breaking strength of ileal anastomoses in the placebo group was 133 +/- 6.9 g (P < 0.05). The rGH group demonstrated a greater anastomotic thickness (1.65 +/- 0.116 mm) than the placebo group (1.17 +/- 0.113 mm, P < 0.05). Of placebo rats 14.7% developed anastomotic leaks compared to 0% of rGH-treated animals (P < 0.05). CONCLUSIONS: RGH increased the ileal anastomotic breaking strength by 36% in radiated rats. The anastomotic leak rate was reduced from 14.7% in the placebo group to 0% in the rGH group. These findings correlated with a 41% increase in the thickness of the anastomotic connective tissue in the rGH group. Clinical investigation in selected patients is warranted.


Subject(s)
Anastomosis, Surgical , Growth Hormone/pharmacology , Ileum/physiopathology , Ileum/surgery , Radiation Injuries, Experimental/physiopathology , Animals , Connective Tissue/pathology , Female , Ileum/pathology , Rats , Rats, Sprague-Dawley , Recombinant Proteins , Surgical Wound Dehiscence/prevention & control
13.
J Soc Gynecol Investig ; 4(5): 259-61, 1997.
Article in English | MEDLINE | ID: mdl-9360231

ABSTRACT

OBJECTIVE: In gynecologic surgery, the ileum is the primary site of bowel injury. Recombinant growth hormone (rGH) has been shown to improve the strength of colonic anastomoses in experimental models. The purpose of this study is to evaluate the effect of rGH on small bowel anastomoses, specifically in the ileum. METHODS: Twenty large female rats underwent segmental ileal resections and end-to-end ileoileostomies. The rats were randomized to be treated for 7 postoperative days with either rGH (2.0 mg/kg/day) or placebo starting on the day of surgery. On the seventh postoperative day, a segment of ileum surrounding the anastomosis was resected. The anastomoses were tested for breaking strength on a tensiometer and for tissue concentrations of hydroxyproline. RESULTS: The ileal anastomotic breaking strength in the rGH group was 163.5 +/- 6.0 g (mean +/- standard error). In the placebo group, the breaking strength of ileal anastomoses was 125.0 +/- 3.0 g (P < .001). No significant difference was demonstrated with respect to the hydroxyproline concentration between the rGH group (15.2 +/- 2.0 micrograms/mg) and the placebo group (14.6 +/- 1.0 micrograms/mg). CONCLUSION: In an animal model, a 31% increase in ileal anastomotic breaking strength was induced by rGH administration. With further research this may translate into decreases in the surgical complications that occur in ileal anastomoses. Furthermore, these serve as preliminary data to a study that evaluates the effect of rGH on ileal anastomoses in radiation-injured bowel.


Subject(s)
Growth Hormone/pharmacology , Hydroxyproline/drug effects , Hydroxyproline/metabolism , Ileum/drug effects , Anastomosis, Surgical , Animals , Female , Growth Hormone/administration & dosage , Ileum/surgery , Injections, Subcutaneous , Random Allocation , Rats , Rats, Sprague-Dawley , Tensile Strength/drug effects , Tensile Strength/physiology
14.
J Low Genit Tract Dis ; 1(2): 57-9, 1997 Apr.
Article in English | MEDLINE | ID: mdl-25950875

ABSTRACT

BACKGROUND: Our objective was to determine whether colposcopy can be performed with surgical-type loupes. METHODS: Sixty-one patients with abnormal Papanicolaou (Pap) smear test reports were examined with 6× loupes supplied by Designs For Vision, Inc. (Ronkonkoma, NY) and with a standard Zeiss Colposcope (Model OM-1). Comparisons between the two instruments were made for colposcopic impression and final histological analysis. Statistical analysis was performed by using the Kappa test. RESULTS: Comparison of the two methods of examination demonstrated excellent agreement (κ = .86) with Pap smear and biopsy results. CONCLUSIONS: We decided that surgical loupes are adequate for colposcopic examination.

15.
J Low Genit Tract Dis ; 1(2): 60-2, 1997 Apr.
Article in English | MEDLINE | ID: mdl-25950876

ABSTRACT

BACKGROUND: Our objective was to describe our experience in using a newly designed surgical loupe as a substitute device for colposcopy. METHODS: Eighty-two patients were examined with a prototype surgical loupe. The instrument has a self-contained halogen light source, allows for 6× and 10× magnification, and has a green filter. Colposcopic impression within one degree of the histological diagnosis was considered in agreement. The colposcopic impression using the new instrument was compared to biopsy diagnoses. RESULTS: Colposcopic impressions with this new instrument agreed with final histological diagnoses in 93% of cases. The instrument was easy to use. CONCLUSION: The 6× to 10× surgical loupe is comfortable to use. Correlation with final pathological evaluation is comparable to standard colposcopic instruments. A trial of this instrument against a standard colposcope is ongoing.

16.
Cancer ; 77(9): 1850-3, 1996 May 01.
Article in English | MEDLINE | ID: mdl-8646684

ABSTRACT

BACKGROUND: Stage III ovarian carcinoma has shown resistance to adjuvant chemotherapy following surgical cytoreduction. With recurrence of ovarian carcinoma, cell lines may develop resistance to previously used chemotherapy. This contributes to the fact that survival rates for patients with ovarian carcinoma have not been dramatically improved in decades. The objective of this study is to evaluate radiotherapy as a cisplatin-sensitizer in a cisplatin-resistant ovarian carcinoma cell line. METHODS: In vitro OVCAR-3 human ovarian carcinoma cells were irradiated with external beam radiation (XRT) at doses of 500, 1,500, and 4,500 centigray (cGy) in a single fractionation. Twelve hours after XRT, cells were treated with a dose of cisplatin for 2 hours (0, 1, 3, 9, and 90 micrograms/mL). Cell attachment was determined by cell counts using a hemocytometer under phase-contrast microscopy. Analysis of variance followed by the Student Newman Keuls Test were used for statistical analysis. RESULTS: Dose-response curves demonstrate the results of this study as follows: (1) XRT has a significant direct effect on cell attachment of OVCAR-3 cells in a dose-response relationship. (2) cisplatin has no effect on cell attachment in the absence of XRT. (3) When cells are exposed to XRT, cisplatin demonstrates a dose-response effect on cell attachment with a dose of XRT as low as 500 Gy. CONCLUSIONS: This in vitro study suggests that XRT sensitizes cisplatin-resistant OVCAR-3 to cisplatin. This occurred with doses of radiation low enough to suggest a potential clinical role in treating resistant ovarian carcinoma.


Subject(s)
Antineoplastic Agents/therapeutic use , Carcinoma/drug therapy , Carcinoma/radiotherapy , Cisplatin/therapeutic use , Ovarian Neoplasms/drug therapy , Ovarian Neoplasms/radiotherapy , Analysis of Variance , Carcinoma/pathology , Cell Adhesion/drug effects , Cell Adhesion/radiation effects , Cell Count/drug effects , Cell Count/radiation effects , Cell Line , Dose-Response Relationship, Drug , Dose-Response Relationship, Radiation , Drug Resistance, Neoplasm/radiation effects , Female , Humans , Microscopy, Phase-Contrast , Ovarian Neoplasms/pathology , Radiotherapy Dosage , Tumor Cells, Cultured
17.
J Clin Invest ; 96(1): 343-53, 1995 Jul.
Article in English | MEDLINE | ID: mdl-7615804

ABSTRACT

Uteroglobin (UG) gene encodes a cytokine-like, multifunctional, antiinflammatory protein, with potent phospholipase A2-inhibitory activity. It has been suggested that during implantation this protein protects the embryos from maternal immunological assault, facilitates the maintenance of quiescence in the uterus throughout pregnancy, prevents the onset of premature labor, and helps maintain an inflammation-free respiratory organ. This latter function of UG is suggested to be accomplished by preventing hydrolysis of surfactant phospholipids by a lung-specific phospholipase A2. Using reverse transcription polymerase chain reaction, in situ hybridization, immunofluorescence, and radioimmunoassay, we studied UG gene expression in the rabbit uterus throughout gestation and in the fetal lung. Here, we report that: (a) contrary to previous reports, UG gene expression in the rabbit uterus occurs throughout gestation with a precipitous decline just before parturition; (b) this gene expression is dramatically increased in the fetal lung with increasing gestational age; and (c) while there is an inverse relationship between the levels of UG, PGE2, and PGF2 alpha, a positive correlation was found in that of UG and leukotriene C4 in the fetal lung. Our results raise the possibility that dysregulation of UG gene expression, at least in part, may contribute to the onset of premature labor and the development of inflammatory lung disease in premature neonates.


Subject(s)
Eicosanoids/analysis , Fetus/metabolism , Lung/metabolism , Uteroglobin/genetics , Uterus/metabolism , Animals , Base Sequence , Female , Fetus/chemistry , Fluorescent Antibody Technique , In Situ Hybridization , Molecular Sequence Data , Pregnancy , RNA, Messenger/analysis , Rabbits , Radioimmunoassay , Uteroglobin/analysis
18.
J Assist Reprod Genet ; 12(2): 147-52, 1995 Feb.
Article in English | MEDLINE | ID: mdl-7670274

ABSTRACT

PURPOSE: The mouse embryo assay (MEA) is used to test media used for in vitro fertilization (IVF). Negative controls usually consist of previously tested media known to support growth of embryos to the blastocyst stage by 72 h. Often, no concurrent positive (toxic) controls are reported. Thus, any unusually hardy cohort of embryos may go undetected. Endotoxin was tested for its suitability as a positive control in the MEA. RESULTS: Female mice were stimulated with gonadotropins mated with males, and embryos flushed from their oviducts 36 h after HCG injection. Two-cell embryos were pooled and randomly distributed to culture dishes containing media without protein supplement. Endotoxin inhibited blastocyst growth beginning at 50 micrograms/ml, with complete suppression of development at 5000 micrograms/ml. With 500 micrograms/ml endotoxin, an average of 34.8% of the embryos developed to the blastocyst stage for eight separate assays. The interassay coefficient of variation (CV) was 76%, while the intraassay CV was 9.4%. At 48 h the zona pellucida was absent from all of the embryos exposed to the endotoxin. A large difference was found between two lots of endotoxin with the same claimed potency. CONCLUSIONS: These studies demonstrate the importance for inclusion of a well-defined positive control when performing the mouse embryo assay.


Subject(s)
Blastocyst/drug effects , Embryonic and Fetal Development/drug effects , Endotoxins/toxicity , Fertilization in Vitro , Lipopolysaccharides/toxicity , Animals , Blastocyst/physiology , Cell Division/drug effects , Culture Media , Dose-Response Relationship, Drug , Female , Humans , Mice , Mice, Inbred Strains , Zona Pellucida/drug effects
19.
J Assist Reprod Genet ; 12(1): 48-54, 1995 Jan.
Article in English | MEDLINE | ID: mdl-7580010

ABSTRACT

PURPOSE: This study examined sperm motion parameters as measured by computerized automated semen analysis before and after a Percoll wash and determined if differences in any parameter were correlated with fertility subsequent to intrauterine insemination (IUI). RESULTS: Total motile sperm decreased following the washing procedure from 79.0 +/- 9.0 to 37.2 +/- 7.6 million sperm. Motility increased from a mean of 43.4% to 61.7% (P < 0.001). Other motility parameters also changed significantly (P < 0.001) as follows: curvilinear velocity (VCL), 43.4 to 61.7 microns/s; straight-line velocity (VSL), 21.3 to 26.7 microns/s; linearity 53.1 to 45.2%; lateral head displacement (ALH), 2.97 to 3.94 microns. Similar changes occurred following a swim-up preparation, although changes in mean motility, VCL, and ALH were significantly greater when compared to Percoll. The postwash changes were not accounted for merely by time lapse in preparation since reanalyzed untreated controls did not show the same changes in motion parameters. Prewash linearity in those specimens which resulted in pregnancies was greater than in those which did not (P = 0.28). No other significant differences in pre- or post-Percoll washed sperm motion parameters were found between pregnant vs nonfertile cycles. CONCLUSION: Following Percoll wash all CASA-generated motility parameters were significantly altered, but there was little association between these parameters and pregnancy achieved in IUI cycles.


Subject(s)
Cell Separation/methods , Insemination, Artificial/methods , Povidone/pharmacology , Silicon Dioxide/pharmacology , Sperm Motility/drug effects , Centrifugation, Density Gradient , Female , Fertility , Humans , Male , Pregnancy , Pregnancy Rate , Semen/cytology , Spermatozoa
20.
Am J Gastroenterol ; 89(11): 1973-7, 1994 Nov.
Article in English | MEDLINE | ID: mdl-7942720

ABSTRACT

OBJECTIVES: The relationship between menstrual and bowel symptoms, the overlap between the diagnoses of dysmenorrhea (DYS) and functional bowel disorder (FBD), and markers that may be useful in discriminating functional bowel disorders from DYS were studied in 383 women (20-40 yr of age). METHODS: All women completed the NEO Personality Inventory at intake and completed the Moos' Menstrual Distress Questionnaire and a bowel symptom inventory every 3 months for 12 months. Prostaglandin levels were measured in vaginal dialysate on the first day of menses. RESULTS: DYS was diagnosed in 19.8% of the total sample. Functional bowel disorder, defined as abdominal pain with altered bowel function, was diagnosed in 61% of the DYS group compared with 20% of controls (p < 0.05). Neuroticism scores were significantly higher in subjects with functional bowel disorder with or without DYS. However, bowel symptoms were significantly correlated with menstrual symptoms even after statistically controlling for the effects of neuroticism. Painful menses and water retention distinguished the DYS group from the functional bowel disorder group. Prostaglandin levels were elevated in women with DYS, but did not consistently differentiate the diagnostic groups. CONCLUSIONS: The strong covariation of menstrual and bowel symptoms, along with the overlap in diagnoses of DYS and function bowel disorder, suggest a common physiological basis.


Subject(s)
Colonic Diseases, Functional/diagnosis , Dysmenorrhea/diagnosis , Adult , Colonic Diseases, Functional/physiopathology , Colonic Diseases, Functional/psychology , Diagnosis, Differential , Dinoprost/analysis , Dinoprostone/analysis , Dysmenorrhea/physiopathology , Dysmenorrhea/psychology , Female , Humans , Neurotic Disorders/diagnosis , Pain Measurement , Personality Inventory
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