Retrieval of a fractured implant abutment using a modified cover screw removal instrument: A clinical report.

Implant abutment fractures are an uncommon mechanical complication, and the removal of the abutment fragment and replacement with a new prosthesis is the best solution. However, successful retrieval of the fractured abutment fragment from the implant is challenging, and effective rescue kits are lacking. This clinical report describes the retrieval of a fractured implant abutment in a conical connection implant using a modified manufacturer-specific instrument.

Effect of the prosthetic index on stress distribution in Morse taper connection implant system and peri-implant bone: a 3D finite element analysis.

BACKGROUND: The combination of a prosthetic index with Morse taper connection was developed, with the purpose of making prosthetic procedures more precise. However, the presence of the index may compromise the mechanical performance of the abutment. The aim of this study is to evaluate the effect of prosthetic index on stress distribution in implant-abutment-screw system and peri-implant bone by using the 3D finite element methodology. METHODS: Two commercial dental implant systems with different implant-abutment connections were used: the Morse taper connection with platform switching (MT-PS) implant system and the internal hex connection with platform matching (IH-PM) implant system. Meanwhile, there are two different designs of Morse taper connection abutment, namely, abutments with or without index. Consequently, three different models were developed and evaluated: (1) MT-PS indexed, (2) MT-PS non-indexed, and (3) IH-PM. These models were inserted into a bone block. Vertical and oblique forces of 100 N were applied to each abutment to simulate occlusal loadings. RESULTS: For the MT-PS implant system, the maximum stress was always concentrated in the abutment neck under both vertical and oblique loading. Moreover, the maximum von Mises stress in the neck of the MT-PS abutment with index even exceed the yield strength of titanium alloy under the oblique loading. For the IH-PM implant system, however, the maximum stress was always located at the implant. Additionally, the MT-PS implant system has a significantly higher stress level in the abutment neck and a lower stress level around the peri-implant bone compared to the IH-PM implant system. The combined average maximum stress from vertical and oblique loads is 2.04 times higher in the MT-PS indexed model, and 1.82 times for the MT-PS non-indexed model than that of the IH-PM model. CONCLUSIONS: MT-PS with index will cause higher stress concentration on the abutment neck than that of without index, which is more prone to mechanical complications. Nevertheless, MT-PS decreases stress within cancellous bone and may contribute to limiting crestal bone resorption.

Modified membrane fixation technique in a severe continuous horizontal bone defect: A case report.

BACKGROUND: Continuous severe horizontal bone defect is common in the aesthetic maxillary anterior area, and presents a major challenge in implant dentistry and requires predictable bone augmentation to increase the width of the alveolar bone. CASE SUMMARY: A 24-year-old man, with a history of well-controlled IgA nephropathy, presented to the Dentistry Department of our hospital complaining of missing his right maxillary anterior teeth 1 mo ago. Severe horizontal alveolar bone defects at sites of teeth 12, 13 and 14 were diagnosed. A modified guided bone regeneration surgical approach stabilizing the absorbable collagen membrane and particulate graft materials by periosteal diagonal mattress suture (PDMS) combined with four corner pins was used for this severe continuous horizontal bone defect. The outcome revealed that the newly formed alveolar ridge dimension increased from 0.72 mm to 11.55 mm horizontally 10 mo postoperatively, with no adverse events. The implant surgery was successfully performed. CONCLUSION: This case highlights that PDMS combined with four corner pins is feasible to maintain the space and stabilize the graft and membranes in severe continuous horizontal bone defect.

An Up-To-Date Overview of Dental Tissue Regeneration Using Dental Origin Mesenchymal Stem Cells: Challenges and Road Ahead.

Stem cells (SCs) research has experienced exponential growth in recent years. SC-based treatments can enhance the lives of people suffering from cardiac ischemia, Alzheimer's disease, and regenerative drug conditions, like bone or loss of teeth. Numerous kinds of progenitor/SCs have been hypothesized to depend on their potential to regain and/or heal wounded tissue and partly recover organ function. Growing data suggest that SCs (SCs) are concentrated in functions and that particular tissues have more SCs. Dental tissues, in particular, are considered a significant cause of mesenchymal stem cells (MSCs) cells appropriate for tissue regeneration uses. Tissue regeneration and SCs biology have particular attention in dentistry because they may give a novel method for creating clinical material and/or tissue redevelopment. Dental pulp, dental papilla, periodontal ligament, and dental follicle contain mesenchymal SCs. Such SCs, which must be identified and cultivated in specific tissue culture environments, may be used in tissue engineering applications such as tooth tissue, nerve regeneration, and bone redevelopment. A new cause of SCs, induced pluripotent SCs, was successfully made from human somatic cells, enabling the generation of the patient and disease-specific SCs. The dental SC's (DSCs) multipotency, rapid proliferation rate, and accessibility make it an ideal basis of MSC for tissue redevelopment. This article discusses current advances in tooth SC investigation and its possible application in tissue redevelopment.

Mental health and preventive behaviour of pregnant women in China during the early phase of the COVID-19 period.

BACKGROUND: The COVID-19 has caused significant toll over the globe. Pregnant women are at risk of infection. The present study examined the frequency of washing hands with soap and wearing face mask when going out, prevalence of depression and anxiety, and identified their associated factors among pregnant women during the early phase of COVID-19 outbreak in China. METHODS: A cross-sectional online survey was conducted between 24 February and 3 March 2020. A total of 15 428 pregnant women who were using maternal health care services in China completed a questionnaire which assessed their socio-demographic and pregnancy-related characteristics, contextual, cognitive and social factors related to COVID-19, frequency of washing hands and wearing face masks, and depression and anxiety. Logistics regression analyses were performed to identify the associated factors of preventive behaviours and mental health. RESULTS: The prevalence of probable anxiety and depression was 28.2% and 43.6% respectively. 19.8% reported always wearing face mask when going out, and 19.1% reported washing hands with soap for more than 10 times per day. Results from logistic regression analyses showed that older age was associated with lower levels of depression and anxiety (OR = 0.42-0.67) and higher frequency of washing hands (OR = 1.57-3.40). Higher level of education level was associated with probable depression (OR = 1.31-1.45) and higher frequency of wearing face mask (OR = 1.50-1.57). After adjusting for significant socio-demographic and pregnancy-related factors, place of residence being locked down (aOR = 1.10-1.11), being quarantined (aOR = 1.42-1.57), personally knowing someone being infected with COVID-19 (aOR = 1.80-1.92), perception that COVID-19 would pose long term physical harm to human (aOR = 1.25-1.28) were associated with higher levels of depression and anxiety, while the perception that the disease will be under control in the coming month was associated with lower levels of depression and anxiety (aOR = 0.59-0.63) and lower tendency of always wearing face mask (aOR = 0.85). Social support was associated with lower levels of depression and anxiety (aOR = 0.86-0,87) and higher frequency of washing hands (aOR = 1.06). CONCLUSIONS: The mental health and preventive behaviours of pregnant women during COVID-19 outbreak was associated with a range of socio-demographic, pregnancy-related, contextual, cognitive and social factors. Interventions to mitigate their mental health problems and to promote preventive behaviours are highly warranted.

[Expression of Adenovirus-mediated Human Clotting Factor IX Gene in Mouse Adipose-derived Stem Cells].

OBJECTIVE: To investigate the adenovirus-mediated expression of human clotting factor IX (hFIX) gene in mouse adipose-derived stem cells(ADSC). METHODS: The mouse ADSC were isolated and cultured in vitro, the morphology of cells was observed and its growth viability was detected by using CCK-8. Cell surface markers CD29,CD90,CD45 were identified by flow cytometry, and its diferentiation ability was identified by adipogenic and osteogenic induction. Morphological changes was observed and the growth curve should be drawn after transfecting ADSC with adenovirus containing hFIX gene. The expression of hFIX gene was detected by RT-PCR. The expression of hFIX protein in ADSC or in culture supernatant was detected by Western blot. hFIX protein in the supernatant was measured by ELISA, and the clotting factor activity of hFIX in culture supernatant was measured by one-stage method. RESULTS: The in vitro cultured mouse ADSC displayed microspherical shape and strong refractive property. Anchoring growth was lasted for 4-6 hours after planting into culture flask. After cultured for 72 hours, the cells showed long spindle-shaped fibrous and swirling arrangement. The overall growth trend of the third generation ADSC cultured in vitro was S-shaped. The formation of lipid droplets could be observed in the induced cells with Oil red O staining by inverted microscope. After alizarin red staining, the orange-red calcified bone nodes were observed in the induced cells under inverted phase contrast microscope. CD29 (99.91%) and CD90 (99.02%) highly expressed in the third generation of ADSC, but CD45 (0.94%) almost not expressed. RT-PCR showed the hFIX gene could expressed in mouse ADSC. Western blot showed that hFIX protein expressed in both ADSC and culture supernatant. FIX:Ag in cell supernatant was 21.33±3.93 ng/(106 cells.24 h) on the first day, 12.63±0.86 ng/(106 cells.24 h) on the third day and 12.63±2.36 ng/(106 cells.24 h) on the ninth day. FIX:C in culture supernatant was 8.5%. CONCLUSION: Adenovirus-carried hFIX gene can effectively transfect ADSC. ADSC modified by hFIX gene can secrete hFIX protein with coagulation activity.

[Adenovirus-mediated Expression of B-domain-Deleted Human Coagulation Factor â § in ADSC of SD Rats].

OBJECTIVE: To transinfect SD adipose tissue-derived stem cell (ADSC) in vitro with a recombinant adenoviral vector containing human B-domain-deleted FVIII (BDDhFⅧ), so as to lay the foundation for the treatment of hemophilia A by using ADSC combined with BDDhFⅧ gene. METHODS: ADSCs were isolated from the inguinal adipose tissue of SD rats and passed to third passage for identification. Third passage ADSCs were transfected in vitro with recombinant adenovirus vector Ad-BDDhFⅧ-GFP. The experiments were divided into Ad-BDDhFⅧ-GFP-transfected ADSCs group (A), Ad-GFP-transfected ADSC group (B), and untransfected ADSC group (C). CCK-8 method was used to detect the proliferation of transfected cells in three groups, and the expression level of hFⅧ antigen in cell supernatant was detected by ELISA. RT-PCR and Western blot respectively were used to detect the mRNA and protein expression of BDDhFⅧ in the three groups after transfection. RESULTS: The growth curve of third passage cells isolated and cultured showed an inverted "S" shap; the flow cytometry detection showed the positive expression of CD29, CD90, CD44, and the negative expression of CD45 in third passage cells. After the adipogenic and osteogenic induction, the cells could transformed to adipogenic and osteogenic directions. CCK-8 detection showed that the proliferation of cells in 3 groups not was influenced. ELISA showed that the expression of hFⅧAg in group A was significantly higher than that in group B and C (P＜0.05). RT-PCR showed that compared with group A, there was no target band in B and C groups, and BDDhFⅧ gene was not expressed. The results in group A were consistent with the length of amplified fragments, and BDDhFⅧ target gene was expressed. Western blot analysis showed that the expression of hFⅧ protein in group A was significantly higher than that in group B and C. (P＜0.05). CONCLUSION: Recombinant adenovirus Ad-BDDhFⅧ-GFP can effectively transfect rat ADSC in vitro, which lays an experimental foundation for gene therapy of hemophilia A.

Human papillomavirus infection and associated factors for cervical intraepithelial neoplasia in women living with HIV in China: a cross-sectional study.

OBJECTIVE: Women living with HIV (WLHIV) face disproportionately higher risks of acquiring human papillomavirus (HPV) compared with HIV negative counterparts. We aimed to investigate the prevalence of HPV in WLHIV in Chinese hospital setting and identify associated factors to the progression of late-stage cervical intraepithelial neoplasia (CIN2+) in this population. METHOD: This retrospective study collected data from 183 WLHIV on antiretroviral treatment (ART), based on reproductive health questionnaires. Gynaecological examination results including serum (for HIV viral load, CD4 T-cell count, hepatitis B infections, syphilis) and vaginal swabs for common bacterial sexually transmitted infections (STIs). Multivariate-logistic regression was applied to analyze the contributing factors to CIN2+. RESULTS: HIV coinfection with other Sexually Transmitted Infections (STIs) were observed in 99 participants (54.1%, (99/183)). HPV (43.7% (80/183)) was the most prevalent STI. The three most prevalent HPV subtypes were all high-risk HPV (HR-HPV), including HPV52 (33.8% (27/80)), HPV58 (21.3% (17/80)) and HPV33 (13.75% (11/80)). About a third (37.5%, 30/80) of women with HPV had HR-HPV. Multiple HPV coinfections were common in HIV-HPV coinfected women (41.3%, 33/80). Cytological examinations revealed that 77.5% (62/80) HPV+ women had detectable cervical lesions. In comparison, only 4.9% (5/103) HPV negative womenwith Atypia and 1.0% (1/103) with CIN1 were diagnosed. Multivariate logistic regression revealed that HPV16 (OR=19.04, 2.53 to 122.92; p=0.004) and HPV18 (OR=11.54, 1.45 to 91.64; p=0.021) infections were significantly associated with CIN2+ in HIV-HPV coinfected women. CONCLUSION: A high prevalence of HPV was found in women on ART. HPV16/18 infection are strong associated factors to CIN2+ in HIV-HPV coinfected women.

The Antihelminthic Niclosamide Inhibits Cancer Stemness, Extracellular Matrix Remodeling, and Metastasis through Dysregulation of the Nuclear ß-catenin/c-Myc axis in OSCC.

Niclosamide is an oral chlorinated salicylanilide antihelminthic agent with potential anticancer activity suggested in several cancer types, however, its anticancer action and likely molecular mechanism in malignant oral cells remain unclear. In the present study, we demonstrated that ALDH+ human oral squamous cell carcinoma (OSCC) cells are characterized by upregulated expression of the pluripotency transcription factors OCT4, Nanog and Sox2, as well as exhibit enhanced cancer stemness, as demonstrated by enhanced tumorsphere formation. We also showed that niclosamide effectively inhibits activation of the Wnt/ß-catenin signaling pathway by targeting multiple components of this pathway, including downregulating the expression ß-catenin, Dishevelled 2 (DVL2), phosphorylated glycogen synthase kinase-3ß (p-GSK3ß) and Cyclin D1, in human OSCC SCC4 and SCC25 cell lines, as well as reduced the formation of primary and secondary tumorspheres. In addition, we showed that niclosamide inhibits the epithelial-to-mesenchymal transition (EMT), migration and colony formation of the OSCC cells, by dose-dependently upregulating E-cadherin and the tissue inhibitor of metalloproteinases 2 (TIMP2) mRNA levels, while reducing the expression levels of vimentin, snail, MMP2 and MMP9 mRNA. These anticancer activities of niclosamide were similar to those caused by interference with nuclear ß-catenin/c-Myc expression using the siRNA transfection. Finally, we demonstrated that niclosamide inhibits cisplatin-induced OSCC stem cell enrichment and enhances sensitivity to cisplatin in ALDH+ tumorspheres. These experimental data, combined with accumulated evidence, are suggestive of the potential and efficacy of niclosamide in the treatment of OSCC.

Systematic comparison of biologically active foreign ions-codoped calcium phosphate microparticles on osteogenic differentiation in rat osteoporotic and normal mesenchymal stem cells.

Osteoporosis is a disease characterized by structural deterioration of bone tissue, leading to skeletal fragility with increased fracture risk. Calcium phosphates (CaPs) are widely used in bone tissue engineering strategies as they have similarities to bone apatite except for the absence of trace elements (TEs) in the CaPs. Bioactive glasses (BGs) have also been used successfully in clinic for craniomaxillofacial and dental applications during the last two decades due to their excellent potential for bonding with bone and inducing osteoblastic differentiation. In this study, we evaluated the osteogenic effects of the ionic dissolution products of the quaternary Si-Sr-Zn-Mg-codoped CaP (TEs-CaP) or 45S5 Bioglass® (45S5 BG), both as mixtures and separately, on rat bone marrow-derived mesenchymal stem cells (rOMSCs & rMSCs) from osteoporotic and normal animals, using an MTT test and Alizarin Red S staining. The materials enhanced cell proliferation and osteogenic differentiation, especially the combination of the BG and TEs-CaP. Analysis by quantitative PCR and ELISA indicated that the expression of osteogenic-specific genes and proteins were elevated. These investigations suggest that the TEs-CaP and 45S5 BG operate synergistically to create an extracellular environment that promotes proliferation and terminal osteogenic differentiation of both osteoporotic and normal rMSCs.

Smoking and Its Relation to Metabolic Status among Chinese Adults: Analysis of a Nationwide Survey

OBJECTIVE: To update the estimated prevalence rates of smoking and examine major metabolic diseases associated with smoking status in Chinese adults. METHODS: Using a complex, multistage, probability sampling design, we recruited a nationally representative sample of 98,658 Chinese adults aged ⋝18 years in 2010. Information on current, former, never, and passive smoking status was obtained using a standard questionnaire. All estimates were weighted to represent the overall Chinese adult population. RESULTS: The estimated proportion of current smokers was 28.3% for Chinese adults aged ⋝18 years. The corresponding values of former and passive smokers were 5.1% and 21.4%, respectively. Additionally, former smokers were found to have a less favorable metabolic risk profile among all categories of smoking status in both men and women. The prevalence of metabolic diseases such as diabetes and hypertension also increased with a greater number of smoking pack-years in men. CONCLUSION: The prevalences of current smoking and passive smoking remain high in Chinese adults.

[A Preliminary Exploration on the Pathogenesis of Osteopenia in Patients with Hemophilia].

OBJECTIVE: To investigate the influencing factors and pathogenesis of osteopenia in the patients with hemophilia. METHODS: Twenty-three patients with hemophilia were admitted in the hospital affiliated to North China University of Science and technology from March to August 2015, including 13 severe cases, 10 mild and moderate cases. All the patients accepted the detection of serum I collagen cross-linking N terminal peptide (NTX I), osteoprotegerin (OPG), bone alkaline phosphatase (BALP), basic fibroblast growth factor (bFGF), insulin-like growth factor (IGF) and transforming growth factor-ß1 (TGF-ß1), the score scale of activity ability was recorded according to the criteria published by the U.S. Center for disease prevention and control in 2002, and 21 patients received the measurement of bone mineral density. According to the World Health Organization (WHO) definition, the clinical significance of bone mineral density (BMD) was assessed by measuring the Z level. RESULTS: Z level>-2 was recorded in 10 cases, Z≤-2 was recorded in 11 cases; the levels of body mass index (BMI) and human bone alkaline phosphatase (BALP) reflecting bone formation in 11 cases (Z≤-2) were lower than there in 10 cases (Z>-2) (P<0.05); the levels of BALP (r=0.489, P<0.05), IGF (r=0.538, P<0.05) and BMI (r=0.572, P<0.01) positively correlated significantly with BMD (P<0.05); the levels of bFGF (r=0.570, P<0.01) and OPG (r=0.505, P<0.05) positively correlated with NTX I, indicating bone destruction (P<0.05); the score of activity ability of severe patients was significantly lower than that of mild and moderate cases (P<0.05), BMD levels of these 2 groups were not statistically different (P>0.05). CONCLUSION: The BMD level does not correlate with the clinial grouping of hemophilia, the low body mass index may be a risk factor for bone lose; the mechanism of hemophilia patient's bone lose may be related with the decrease of osteogenic activity, the IGF can prevent bone lose in hemophilia, the bFGF and OPG can promote bone metabolism of the patients with hemophilia.

Prevalence of Major Cardiovascular Risk Factors and Cardiovascular Disease in Women in China: Surveillance Efforts.

In this study, we aimed to assess the relationship of socioeconomic status and acculturation with cardiovascular disease (CVD) risk profiles and CVD and examine the CVD risk factors associated with CVD. We used data from the 2010 China Chronic Disease and Risk Factor Surveillance surveys, which consisted of a nationally representative sample of women. The following prevalence was found: myocardial infarction (MI): 0.4%; stroke: 0.5%; abnormal cholesterolemia: 44.9%; overweight or obesity: 32.2%; hypertension: 31.7%; diabetes: 9.0%; and smoking: 2.5%. In total, 30.9% of Chinese women had no risk factors, but 13.3% had ⋝3 associated risk factors. In multivariate-adjusted models, hypertension, diabetes, overweight or obese, and smoking were all directly associated with MI; For stroke, associations were positive with hypertension, abnormal cholesterolemia, diabetes, and overweight or obesity. Therefore, it can be concluded that CVD risk factors are common among Chinese women aged ⋝18 years.

Feeding methods, sleep arrangement, and infant sleep patterns: a Chinese population-based study.

BACKGROUND: Findings from prior research into the effect of feeding methods on infant sleep are inconsistent. The objectives of this study were to examine infants' sleep patterns by feeding methods and sleep arrangement from birth to eight months old. METHODS: This longitudinal cohort study enrolled 524 pregnant women at 34-41 weeks of gestation and their infants after delivery in 2006 and followed up until eight months postpartum. The study subjects were recruited from nine women and children hospitals in nine cities in China (Beijing, Chongqing, Wuhan, Changsha, Nanning, Xiamen, Xi'an, Jinan, and Hailin). Participating infants were followed up weekly during the first month and monthly from the second to the eighth month after birth. Twenty-four hour sleep diaries recording infants' sleeping and feeding methods were administered based on caregiver's self-report. Multivariable mixed growth curve models were fitted to estimate the effects of feeding methods and sleep arrangement on infants' sleep patterns over time, controlling for maternal and paternal age, maternal and paternal education level, household income, supplementation of complementary food, and infant birth weight and length. RESULTS: Exclusively formula fed infants had the greatest sleep percentage/24 h, followed by exclusively breast milk fed infants and partially breast milk fed infants (P<0.01). Night waking followed a similar pattern. However, the differences in sleep percentage and night waking frequency between exclusively formula and exclusively breast milk fed infants weakened over time as infants developed. In addition, compared to infants with bed-sharing sleep arrangement, those with room sharing sleep arrangement had greater daytime and 24-hour infant sleep percentage, whereas those with sleeping alone sleep arrangement had greater nighttime sleep percentage. CONCLUSIONS: Our data based on caregiver's self-report suggested that partial breastfeeding and bed-sharing may be associated with less sleep in infants. Health care professionals need to work with parents of newborns to develop coping strategies that will help prevent early weaning of breastfeeding.

Association between CTLA-4 exon-1 +49A/G polymorphism and asthma: an updated meta-analysis.

The results of studies on association between CTLA-4 exon-1 +49A/G (rs231775) polymorphism and susceptibility to asthma are controversial. To derive a more precise estimation of the relationship between the CTLA-4 exon-1 +49A/G polymorphism and asthma, a meta-analysis of 15 published case-control studies was performed. 15 studies meeting our inclusion criteria comprising 4006 asthma cases and 3729 controls were included. The effect summary odds ratio (OR) and 95% confidence intervals were obtained. Publication bias was tested by funnel plot, Egger's test and heterogeneity was assessed. The combined results showed that there were significant differences in genotype distribution between asthma cases and control on the basis of all studies, GG + GA versus AA (OR = 0.76, 95% CI: 0.62-0.93; P = 0.008). When stratifying for the race, the phenomenon was found that asthma cases had a significantly higher frequency of GG/GA versus AA (OR = 0.71; 95% CI: 0.51-0.99; P = 0.04) than control in Caucasian. Stratifying subjects by age indicated an association between CTLA-4 +49 GG + GA genotype and asthma in children (OR = 0.75; 95% CI: 0.62-0.90; P = 0.002), but no association in adults (OR = 0.93; 95% CI: 0.76-1.14; P = 0.48). Furthermore, significant association was observed in atopic asthma under the fixed-effects model (GG + GA vs. AA: P = 0.03, OR = 0.81, 95% CI = 0.67-0.98, P heterogeneity = 0.22). Our meta-analysis results suggest that CTLA-4 exon-1 +49A/G polymorphism might be a risk factor for asthma susceptibility, at least in Caucasian, children, and patients with atopy status.

Integrated prevention of mother-to-child transmission for human immunodeficiency virus, syphilis and hepatitis B virus in China.

PROBLEM: China continues to face challenges in eliminating mother-to-child transmission of human immunodeficiency virus (HIV), syphilis and hepatitis B virus (HBV). APPROACH: In 2010, a programme that integrated and standardized prevention of mother-to-child transmission (PMTCT) efforts for HIV, syphilis and HBV was implemented in 1156 counties. At participating antenatal care clinics, pregnant women were offered all three tests concurrently and free of charge. Further interventions such as free treatment, prophylaxis and testing for mothers and their children were provided for HIV and syphilis. LOCAL SETTING: China's national PMTCT HIV programme started in 2003, at which time there were no national programmes for perinatal syphilis and HBV. In 2009, the rate of maternal-to-child transmission of HIV was 8.1% (57/702). Reported congenital syphilis was 60.8 per 100,000 live births. HBV infection was 7.2% of the overall population infected. RELEVANT CHANGES: Between 2010 and 2013 the number of pregnant women attending antenatal care clinics with integrated PMTCT services increased from 5.5 million to 13.1 million. In 2013, 12.7 million pregnant women were tested for HIV, 12.6 million for syphilis and 12.7 million for HBV. Mother-to-child transmission of HIV fell to 6.7% in 2013. Data on syphilis transmission are not yet available. LESSONS LEARNT: Integrated PMTCT services proved to be feasible and effective, and they are now part of the routine maternal and child health services provided to infected women. The services are provided through a collaboration between maternal and child health clinics, the national and local Centers for Disease Control and Prevention, and general hospitals.

Dietary sodium intake and its impact factors in adults of Shandong province.

Dietary sodium intake and its impact factors in 2 140 adults aged 18-69 years were analyzed. The mean daily sodium intake was 5745.0 (5427.6-6062.5) mg per day, which was higher in males than in females (P<0.01). After having been adjusted for gender, age and urban/city areas, the mean daily sodium intake was significantly higher in participants with a lower education level, drinkers and smokers than in those with a higher education level, nondrinkers and nonsmokers (P<0.01). The dietary sodium intake in adults of Shandong Province is higher than the recommended standards.