RESUMO
OBJECTIVE: To observe the effect of ginger-partitioned moxibustion intervention on gastrointestinal reaction, the quality of life, the counts of blood platelet (PLT) and white blood cells (WBC) after chemotherapy in lung cancer patients. METHODS: The lung cancer patients treated with chemotherapy were randomized into observation group (30 cases) and control group (30 cases). In the control group, the intravenous injection with Tropisetron(5 mg) was given 1 h before chemotherapy. In the observation group, in addition to the same treatment as the control group, 2 hours after chemotherapy, ginger-partitioned moxibustion was applied to bilateral Zusanli (ST36), bilateral Neiguan (PC6) and bilateral Tianshu (ST25) for 20 min each time. The treatments were conducted once daily for 3 days. Separately, 2 days before chemotherapy, 24 h and 7 days after chemotherapy, the gastrointestinal reaction score and the score of the quality of life, the PLT and WBC counts were observed in the two groups. RESULTS: The effective rate of the gastrointestinal reaction degree in the observation group were higher than those in the control group 24 h and 7 days after chemotherapy (P<0.05). Twenty-four hours after chemotherapy, the score of the quality of life, the PLT and WBC counts were lower as compared with those before the treatment in both groups respectively(P<0.05). Seven days after chemotherapy, the score of the quality of life, the PLT and WBC counts in the observation group were higher than those in the control group (P<0.05). CONCLUSION: The ginger-partitioned moxibustion achieves the definite clinical effect of the prevention of nausea and vomiting induced by chemotherapy in lung cancer. This therapy is simple in operation, high in safety, absent in obvious adverse reactions and high in patient's compliance.
Assuntos
Antineoplásicos/efeitos adversos , Neoplasias Pulmonares , Moxibustão , Náusea/prevenção & controle , Vômito/prevenção & controle , Zingiber officinale , Humanos , Neoplasias Pulmonares/tratamento farmacológico , Qualidade de VidaRESUMO
OBJECTIVE: To analyze the overall survival (OS) of elderly acute myeloid leukemia (AML) patients treated with oral arsenic-containing Qinghuang Powder (, QHP) or low-intensity chemotherapy (LIC). METHODS: Forty-two elderly AML patients treated with intravenous or subcutaneous LIC (1 month for each course, at least 3 courses) or oral QHP (3 months for each course, at least 2 courses) were retrospectively analyzed from January 2015 to December 2017. The main endpoints of analysis were OS and 1-, 2-, 3-year OS rates of patients, respectively. And the adverse reactions induding bone marrow suppression, digestive tract discomfort and myocardia injury were observed. RESULTS: Out of 42 elderly AML patients, 22 received LIC treatment and 20 received QHP treatment, according to patients' preference. There was no significant difference on OS between LIC and QHP patients (13.0 months vs. 13.5 months, >0.05). There was no significant difference on OS rates between LIC and QHP groups at 1 year (59.1% vs. 70.0%), 2 years (13.6% vs. 15%), and 3 years (4.6% vs. 5.0%, all >0.05). Furthermore, there was no significant difference of OS on prognosis stratification of performance status > 2 (12 months vs. 12 months), age> 75 year-old (12.0 months vs. 12.5 months), hematopoietic stem cell transplant comorbidity index >2 (12 months vs. 13 months), poor cytogenetics (12 months vs. 8 months), and diagnosis of secondary AML (10 months vs. 14 months) between LIC and QHP patients (>0.05). CONCLUSION: QHP may be an alternative treatment for elderly AML patients refusing LIC therapy.
Assuntos
Antineoplásicos/uso terapêutico , Arsenicais/uso terapêutico , Medicamentos de Ervas Chinesas/uso terapêutico , Leucemia Mieloide Aguda/tratamento farmacológico , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Leucemia Mieloide Aguda/mortalidade , Masculino , Pessoa de Meia-Idade , Pós , Estudos RetrospectivosRESUMO
OBJECTIVE: To observe the effect of acupuncture in different time on nausea and vomiting induced by chemotherapy of lung cancer. METHODS: A total of 150 patients with chemotherapy for lung cancer were randomized into a No.1 observation group, a No.2 observation group and a control group, 50 cases in each one. Excluded the dropped-off cases, finally, there were 49 cases in the No.1 observation group, 44 cases in the No.2 observation group and 47 cases in the control group. In the control group, 30 min before chemotherapy, the slow intravenous injection with tropisetron hydrochloride was used, 5 mg each time, once a day for 3 days. In the No.1 observation group, 30 min before chemotherapy, the slow intravenous injection with tropisetron hydrochloride was given combined with acupuncture. The acupoints selected were Zusanli (ST 36), Zhongwan (CV 12) and Neiguan (PC 6). The needles were retained for 30 min. The treatment was given once a day for 3 days totally. In the No.2 observation group, 30 min before chemotherapy, the slow intravenous injection with tropisetron hydrochloride was used, and 30 min after chemotherapy, acupuncture treatment was exerted. The acupoints and needling method were same as those in the No.1 observation group. Before and after treatment, the digestive reaction score, Karnofsky performance status scale (KPS) score and white blood cell count were all observed in the three groups. Additionally, the therapeutic effect and adverse reaction were observed and the therapeutic effect was compared among the treatment with acupuncture in different time. RESULTS: On the 2nd day of chemotherapy, the effective rates were 85.7% (42/49) and 75.0% (33/44) in the No.1 observation group and the No.2 observation group respectively, both higher obviously than 68.1% (32/47) in the control group (P<0.05), and the effective rate in the No.1 observation group was higher obviously than the No.2 observation group (P<0.05). On the 3rd day of chemotherapy, the effective rates were 81.6% (40/49) and 61.4% (27/44) in the No.1 observation group and the No.2 observation group respectively, both higher obviously than 57.5% (27/47) in the control group (P<0.05), and the effective rate in the No.1 observation group was higher obviously than the No.2 observation group (P<0.05). Compared before treatment, the KPS scores after treatment were obviously lower in the three groups (P<0.05), and the decreased value of KPS score in the No.1 observation group was much lower than the control group and the No.2 observation group (P<0.05). After 3-day chemotherapy, the white blood cell count was all reduced in each group, but the decreased value was not different statistically among the groups (P>0.05). CONCLUSION: Acupuncture combined with the slow intravenous injection with tropisetron hydrochloride achieve the satisfactory effect of prevention and treatment for vomiting induced by chemotherapy of lung cancer. The acupuncture intervention before chemotherapy greatly improves the effect on the nausea and vomiting induced by chemotherapy of lung cancer.
Assuntos
Terapia por Acupuntura , Neoplasias Pulmonares , Náusea/terapia , Vômito/terapia , Pontos de Acupuntura , Humanos , Resultado do TratamentoRESUMO
OBJECTIVE: To investigate the relation of blood arsenic concentration (BAC) with clinical effect and safety of arsenic-containing Qinghuang Powder (, QHP) in patients with myelodysplastic syndrome (MDS). METHODS: Totally 163 patients with MDS were orally treated with QHP for 2 courses of treatment, 3 months as 1 course. The BACs of patients were detected by atomic fluorescence spectrophotometry at 1, 3, and 6 months during the treatment, and the effective rate, hematological improvement and safety in patients after treatment with QHP were analyzed. RESULTS: After 2 courses of treatment, the total effective rate was 89.6% (146/163), with 31.3% (51/163) of hematological improvement and 58.3% (95/163) of stable disease. The hemoglobin increased from 73.48 ± 19.30 g/L to 80.39 ± 26.56 g/L (P<0.05), the absolute neutrophil count increased from 0.81 ± 0.48 × 109/L to 1.08 ± 0.62 × 109/L (P<0.05), and no significant changes were observed in platelet counts (P>0.05). Among 46 patients previously depended on blood transfusion, 28.3% (13/46) completely got rid of blood transfusion and 21.7% (10/46) reduced the volume of blood transfusion by more than 50% after treatment. The BACs were significantly increased in patients treated for 1 month with 32.17 ± 18.04 µ g/L (P<0.05), 3 months with 33.56 ± 15.28 µ g/L (P<0.05), and 6 months with 36.78 ± 11.92 µ g/L (P<0.05), respectively, as compared with those before treatment (4.08 ± 2.11 µ g/L). There were no significant differences of BACs among the patients treated for 1, 3 and 6 months (P>0.05). The adverse reactions of digestive tract during the treatment were mild abdominal pain and diarrhea in 14 cases (8.6%), and no patients discontinued the treatment. The BACs of patients with gastrointestinal adverse reactions were significantly lower than those without gastrointestinal adverse reactions (22.39 ± 10.38 vs. 37.89 ± 11.84, µ g/L, P<0.05). The BACs of patients with clinical effect were significantly higher than those failed to treatment (40.41 ± 11.69 vs. 23.84 ± 12.03, µ g/L, P<0.05). CONCLUSION: QHP was effective and safe in the treatment of patients with MDS and the effect was associated with BACs of patients.
Assuntos
Arsênio/sangue , Arsenicais/efeitos adversos , Arsenicais/uso terapêutico , Medicamentos de Ervas Chinesas/efeitos adversos , Medicamentos de Ervas Chinesas/uso terapêutico , Síndromes Mielodisplásicas/sangue , Síndromes Mielodisplásicas/tratamento farmacológico , Contagem de Células Sanguíneas , Transfusão de Sangue , Humanos , Cariótipo , Pós , Fatores de RiscoRESUMO
OBJECTIVE: To observe the effect of "Tiaoshen Acupuncture" on postpartum low back pain. METHODS: A total of 98 cases of postpartum low back pain were randomly divided into a control group (45 cases, 4 cases dropping) and a treatment group (47 cases, 2 cases dropping). Conventional acupuncture was treated in the control group, and "Tiaoshen Acupuncture" was added in the treatment group on the basis treatment in the control group, acupuncture was applied at Baihui (GV 20), Neiguan (PC 6), Taichong (LR 3). The treatment was given 30 minutes each time, 5 times a week, 10 times for a total course of treatment. Before and after treatment, pain was assessed by the short-form of McGill pain questionnaire (SF-MPQ), dysfunction was assessed by Oswestry disability index (ODI), and depression was assessed by the Edinburgh postnatal depression scale (EPDS). And the changes of various indexs were observed before and after treatment. RESULTS: After treatment, the pain grade index (PRI) score, visual analog scale (VAS) score and present pain intensity (PPI) score in SF-MPQ of the control group and the treatment group were significantly lower than those before treatment (all P<0.001). The ODI score and EPDS score were also significantly lower than those before treatment (all P<0.001). The decline scores of the treatment group before and after treatment were significantly higher than those in the control group (P<0.001, P<0.01). CONCLUSION: "Tiaoshen Acupuncture" combined with conventional acupuncture and conventional acupuncture can effectively improve the symptoms of pain, dysfunction and depression in patients with postpartum low back pain, and the former is significantly better than the latter.
Assuntos
Terapia por Acupuntura , Dor Lombar , Período Pós-Parto , Pontos de Acupuntura , Feminino , Humanos , Medição da Dor , Resultado do TratamentoRESUMO
The tail suspension test (TST), forced swimming test (FST) and chronic unpredictable mild stress (CUMS) model were used to evaluate the anti-depressant effect of supercritical CO2 extract from Compound Chaigui Fang (FFCGF). A nuclear magnetic resonance (NMR)-based metabonomics combined with multivariate statistical analysis was performed to explore the mechanism of FFCGF. Rats were conducted by CUMS procedure for 28 days and drugs were administrated at the same time. The body weight, sucrose preference, crossings and rearings in open-field tests were evaluated and the urine was collected simultaneously. The metabonomic profiles of rats' urine were analyzed by NMR and potential biomarkers were searched by multivariate statistical analysis. The results showed that administration of FFCGF significantly decreasing the immobility time in FST and TST and improving rats' body weight, sucrose preference, crossings and rearings in CUMS, which were indication that the anti-depressant effect of FFCGF was abvious. Significant differences in the metabolic profile of the CUMS treated group and the control group were observed, which were consistent with the results of behavioral tests. Decreased levels of acetic acid, succinic acid, 2-oxidation glutaric acid and citric acid and increased glycine and pyruvic acid in urine were significantly affected by the CUMS procedure and the 6 biomarkers were reversed evidently after administration of FFCGF. These changes were suggestion that the anti-depressant mechanism of FFCGF was associated with energy metabolism, lipid metabolism and amino acid metabolism.
Assuntos
Antidepressivos/isolamento & purificação , Antidepressivos/farmacologia , Dióxido de Carbono/química , Depressão/tratamento farmacológico , Medicamentos de Ervas Chinesas/isolamento & purificação , Medicamentos de Ervas Chinesas/farmacologia , Animais , Antidepressivos/química , Antidepressivos/uso terapêutico , Comportamento Animal/efeitos dos fármacos , Peso Corporal , Medicamentos de Ervas Chinesas/química , Medicamentos de Ervas Chinesas/uso terapêutico , Masculino , CamundongosRESUMO
To determine the optimum conditions of supercritical CO2 extraction of Xiaoyaosan, and establish its fingerprint by gas chromatography-mass spectrometry (GC-MS), the yield of extract were investigated, an orthogonal test was used to quantify the effects of extraction temperature, pressure, CO2 flow rate and time, and fingerprint analysis of different batches of extracts were by GC-MS. The optimal extraction conditions were determined as follows: extraction pressure 20 MPa, extraction temperature 50 degrees C, CO2 flow rate 25 kg x h(-1), extraction time 3 h, and average yield 2.2%. The GC-MS fingerprint was established and 27 common peaks were found, whose contents add up to 81.89% of the total peak area. Among them, 21 compounds were identified, accounting for 53.20% of the total extract. The extraction process is reasonable and favorable for industrial production. The GC-MS method is accurate, reliable, reproducible, and can be used for quality control of supercritical CO2 extract from Xiaoyaosan.
Assuntos
Cromatografia com Fluido Supercrítico/métodos , Medicamentos de Ervas Chinesas/química , Medicamentos de Ervas Chinesas/isolamento & purificação , Cromatografia Gasosa-Espectrometria de Massas/métodos , Dióxido de Carbono/químicaRESUMO
Four polysaccharides (BLF80-A, BLF80-B, BLF80-C and BLF80-D) were isolated by hot-water extraction and purified from the leaves of Herba Lophatheri by DEAE-Sepharose fast flow. Their chemical and physical characteristics were determined and antioxidant activities were investigated on the basis of DPPH radical assay, hydroxyl radical assay and superoxide radical assay. The results showed that four polysaccharides exhibited antioxidant activities in a concentration-dependent manner, and the higher molecular weight, the stronger antioxidant activities of polysaccharides. Besides, the monosaccharide compositions of polysaccharides also influence their antioxidant activities. BLP80-D showed the strongest scavenging ability, followed by BLP80-C, BLP80-B and BLP80-A.
Assuntos
Antioxidantes/química , Antioxidantes/farmacologia , Extratos Vegetais/química , Plantas Medicinais/química , Polissacarídeos/química , Polissacarídeos/farmacologia , Antioxidantes/isolamento & purificação , Radicais Livres/antagonistas & inibidores , Peso Molecular , Monossacarídeos/química , Polissacarídeos/isolamento & purificaçãoRESUMO
INTRODUCTION: The flower bud of Tussilago farfara L. is widely used for the treatment of coughs, bronchitis and asthmatic disorders in traditional Chinese medicine. In Europe, the plant has been used as herbal remedies for virtually the same applications, but the leaves are preferred over flowers. OBJECTIVE: To systematically evaluate the chemical profiles of Tusssilago farfara leaves and flowers along with the identification of the polar and non-polar metabolites. METHODOLOGY: Metabolic profiling carried out by means of ¹H-NMR spectroscopy and multivariate data analysis was applied to crude extracts from flowers and leaves. Metabolites were identified directly from the crude extracts through one-dimensional and two-dimensional NMR spectra. RESULTS: A broad range of metabolites were detected without any chromatographic separation. Principal component analysis (PCA) and partial least squares-discriminant analysis (PLS-DA) of ¹H-NMR data provided a clear separation between the samples. The corresponding loadings plot indicated that higher levels of phenylpropanoids, amino acids, organic acids and fatty acids, as well as lower levels of sugars, terpenoids and sterols were present in the leaves, as compared with flowers. For the flowers, more phenylpropanoids were present in fully open flowers, while more sugars and fatty acids were present in flower buds. CONCLUSION: NMR spectra (one- and two-dimensional) are useful for identifying metabolites, especially for the overlapped signals. The NMR-based metabolomics approach has great potential for chemical comparison study of the metabolome of herbal drugs.
Assuntos
Flores/química , Espectroscopia de Ressonância Magnética/métodos , Metaboloma , Metabolômica/métodos , Folhas de Planta/química , Tussilago/metabolismo , Aminoácidos/química , Aminoácidos/isolamento & purificação , Medicamentos de Ervas Chinesas/química , Medicamentos de Ervas Chinesas/metabolismo , Ácidos Graxos/química , Ácidos Graxos/isolamento & purificação , Flores/metabolismo , Análise dos Mínimos Quadrados , Análise Multivariada , Fitosteróis/química , Fitosteróis/isolamento & purificação , Folhas de Planta/metabolismo , Análise de Componente Principal , Sesquiterpenos/química , Sesquiterpenos/isolamento & purificação , Tussilago/químicaRESUMO
Chronic unpredictable mild stress (CUMS) is a well-validated model of depression. In this study, a urinary metabonomics method based on the NMR spectrometry was used to study the metabolic perturbation in CUMS-induced rat depression model. With pattern recognition analysis, a clear separation of CUMS rats and healthy controls was achieved, and nine endogenous metabolites contributing to the separation were identified. CUMS-treated rats were characterized by the increase of glycine, pyruvate, glutamine, and asparagines, as well as the decrease of 2-oxoglutarate, dimethylglycine, citrate, succinate, and acetate. The urinary biochemical changes related to the metabolic disturbance in CUMS induced depression, and the possible correlations with live qi stagnation in traditional Chinese medicine are discussed. The work shows that CUMS is a reliable model for studying depression, and the noninvasive urinary metabolomic method is a valuable tool to investigate the biochemical pertubations in depression as an early diagnostic means.
Assuntos
Ácidos/urina , Aminas/urina , Aminoácidos/urina , Depressão/urina , Modelos Animais de Doenças , Estresse Fisiológico , Ácidos/metabolismo , Aminas/metabolismo , Aminoácidos/metabolismo , Animais , Comportamento Animal , Depressão/metabolismo , Espectroscopia de Ressonância Magnética , Masculino , Ratos , Ratos Sprague-DawleyRESUMO
OBJECTIVE: To explore the protective effect and the mechanism of controlled hypotension induced by transcutaneous electrical acupoint stimulation (TEAS) combined with general anesthesia. METHODS: Sixteen male Beagles were randomly divided into a group of controlled hypotension induced by simple general anesthesia (control group) and a group of controlled hypotension induced by TEAS combined with general anesthesia (observation group). All the animals were administered with combination of Isoflurane and Sodium Nitroprusside (SNP) for controlled hypotension without TEAS until the arterial pressure was lowered to 30% basic mean arterial pressure (MAP) for 60 min. In the observation group, TEAS (2 Hz/100 Hz, 3-5 mA) was applied to "Hegu" (LI 4) "Zusanli" (ST 36), "Sanyinjiao" (SP 6) and "Quchi" (LI 11) from the beginning of physiological conditions stability to the end of maintained low MAP for 60 min, but there was no TEAS in control group. The changes of MAP, the left intraventricular pressure (LIVP), T wave and ST-T segment of II lead electrocardiogram (ECG) were monitored with the physiological signal acquisition system, and myocardial apoptosis was detected by TUNEL method. RESULTS: All the animals could maintain stable required low blood pressure. At one hour after cease of controlled hypotension, MAP of (109.56 +/- 6.14) mmHg returned to the basic level in the observation group, while MAP of (84.91 +/- 6.36) mmHg was still lower than its basic MAP of (111.02 +/- 4.15) mmHg in the control group (P < 0.05), showing significant difference in MAP between the two groups (P < 0.05). -dp/dtmax of (3156.32 +/- 332.82) mmHg/s showed significant lower than its basic value of (4585.33 +/- 638.55) mmHg/s when blood pressure increased for 1 h in the control group (P < 0.05), but there was no difference in the observation group. When the objective low MAP maintaining for 60 min the ST segment was decreased significantly in the control group (P < 0.05), but there was no difference in the observation group. The numbers of positive apoptosis cardiocytes in the observation group were (24.67 +/- 2.45) cells/mm2, which were significantly fewer than (37.89 +/- 1.90) cells/mm2 in the control group (P < 0. 05). CONCLUSIONS: TEAS combined with general anesthesia for controlled hypotension can significantly shorten restoration time of MAP, help to improve myocardial ischemia and the cardiac functional recovery and reduce myocardial apoptosis so as to produce myocardial protection.
Assuntos
Pontos de Acupuntura , Anestesia Geral , Coração/fisiologia , Hipotensão Controlada , Estimulação Elétrica Nervosa Transcutânea , Anestésicos Gerais/farmacologia , Animais , Pressão Sanguínea/efeitos dos fármacos , Cães , Coração/efeitos dos fármacos , Humanos , Masculino , Modelos Animais , Distribuição AleatóriaRESUMO
A high-performance liquid chromatographic (HPLC) method was established to analyze 36 Chaihu (Radix Bupleuri) samples collected from three species (Bupleurum chinense DC., B. scorzonerifolium Willd. and B. smithii Wolff.). Addition of trifluoroacetic acid into the mobile phase resulted in fingerprint chromatograms with stable baselines. There were thirty-two characteristic peaks in the standard fingerprint of B. chinense DC. Different recognition pattern methods, including similarity analysis (SA), hierarchical cluster analysis (HCA), principal component analysis (PCA) and partial least squares-discrimination analysis (PLS-DA) were utilized to analyze the 36 samples based on the contents of chemical constituents. Consistent results from SA, HCA and PCA analysis illustrated the rationalisation for why B. smithii Wolff. was not quoted in the Chinese Pharmacopoeia and classified samples were in agreement with their species. PLS-DA loading plots showed the chemical markers which had the most influences on the separation among different species. However, SA, HCA and PCA could not differentiate between wild and cultivated B. chinense DC. as well as between samples from different provinces. HPLC fingerprint in combination with chemometric techniques provided a very flexible and reliable method for homogeneity evaluation and quality assessment of traditional Chinese medicine.
Assuntos
Bupleurum/química , Cromatografia Líquida de Alta Pressão/métodos , Extratos Vegetais/química , Análise por Conglomerados , Análise dos Mínimos Quadrados , Medicina Tradicional Chinesa , Análise de Componente Principal , Controle de Qualidade , Reprodutibilidade dos Testes , Especificidade da EspécieRESUMO
INTRODUCTION: Pericarpium Citri Reticulatae, Pericarpium Citri Reticulatae Viride and Fructus Aurantii come from the fruit of Citrus genus and possess analogous pharmacological activities. Either two or three of them are often present in one preparation. However, there is no standard method to differentiate the three herbal medicines for quality control. OBJECTIVE: To develop a fingerprint method for authentication of these three herbal medicines by HPLC. METHODOLOGY: Methanol extracts were analysed by HPLC, with a mobile phase of 0.1% phosphoric acid in water (A) and acetonitrile (B) in a gradient programme. The flow rate was set at 0.8 mL/min and UV detection at 320 nm. Principal component analysis and similarity evaluation were employed to analyse the chromatographic dataset. RESULTS: The chromatograms of 20 Pericarpium Citri Reticulatae, 13 Pericarpium Citri Reticulatae Viride and 15 Fructus Aurantii samples from diverse habitats had 13 peaks in common, and showed one peak characteristic for Pericarpium Citri Reticulatae Viride and two peaks characteristic for Fructus Aurantii. Furthermore, it was possible to differentiate the three medicines by a 'fingerprint region'. The difference between Pericarpium Citri Reticulatae and Fructus Aurantii was much bigger than that between Pericarpium Citri Reticulatae and Pericarpium Citri Reticulatae Viride, as could be shown by calculation of common peak ratio and variation peak ratio. CONCLUSION: A reliable HPLC fingerprint method coupled with principal component analysis and similarity evaluation was developed and showed substantial differentiation power for the three medicines.
Assuntos
Citrus/química , Flavanonas/química , Hesperidina/análogos & derivados , Hesperidina/química , Plantas Medicinais/química , Software , Cromatografia Líquida de Alta Pressão , Frutas/química , Estrutura MolecularRESUMO
OBJECTIVE: To study the value of carboxyhemoglobin (COHb) in the diagnosis of neonatal jaundice. METHODS: This study consisted of 189 patients with neonatal jaundice due to hemolytic disease (n=75), infectious disease (n=52), intracranial hemorrhage (n=32) and breast-milk feeding (n=30). One hundred and forty-two neonates without pathological jaundice that were gestational age, postnatal age- and birth weight-matched were used as the Control group. The level of arterial capillary blood COHb was detected by a 270 CO-oximeter connected to an 800 series system. Total serum bilirubin (STB) content was measured using an Abbott Spectrum CCX chemistry analyzer. The levels of COHb and STB were measured at baseline, and again in patients with jaundice due to hemolytic disease after intravenous gammaglobulin treatment for 2 days. RESULTS: The levels of COHb [(3.64 +/- 0.83)%] and STB (330.84 +/- 77.15 micromol/L) in patients with jaundice due to hemolytic disease were significantly higher than those measured in the Control group [COHb (2.38 +/- 0.35) %; STB 130.18 +/- 32.86 micromol/L] (P < 0.01). The levels in patients with jaundice due to intracranial hemorrhage were also significantly higher than those in the Control group [COHb (2.48 +/- 0.53) % vs (2.24 +/- 0.32) %; STB 184.15 +/- 29.35 micromol/L vs 112.11 +/- 17.45 micromol/L; P < 0.05]. The patients with jaundice due to infectious disease or breast-milk feeding only demonstrated higher levels of serum STB (P < 0.01) while COHb levels were not different compared with the Control group. The patients with jaundice due to hemolytic disease or intracranial hemorrhage presented with hemolytic unconjugated hyperbilirubinemia and had significantly higher COHb levels and lower STB levels than those patients with nonhemolytic unconjugated hyperbilirubinemia (caused by breast jaundice) (P < 0.01). The levels of COHb [(2.68 +/- 0.51) %] and STB (230.18 +/- 42.96 micromol/L) in patients with jaundice due to hemolytic disease decreased markedly after intravenous gammaglobulin treatment (P < 0.01). CONCLUSIONS: The COHb level can be used as a supplementary indicator of increased bilirubin production. The elevation of COHb can be useful in the diagnosis of neonatal jaundice since COHb is elevated in hemolytic disease and intracranial hemorrhage.