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The globalized epidemic of the COVID-19 forced the international community to reconsider the importance and urgency of global public health in world peace and development. The authors analyzed the COVID-19 epidemic prevention and control situation in Africa, and discussed the functions and layout of China-Africa friendship hospitals from the perspective of global health governance. It was suggested that the functions of China-Africa friendship hospitals should be positioned as the high-level medical centers in Africa, regional medical and disease control linkage centers, regional health technology training centers, regional telemedicine collaboration center, and regional health policy research center.Furthermore, the layout of China-Africa friendship hospitals should respond to China′s assistance in the construction of Africa′s center for disease control and China-Africa′s cooperation plan for promoting the " one belt and one road" construction, and work together with the medical team to build a new pattern of medical integration and health care system for African disease prevention and control and medical treatment.
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Patients affected by pulmonary tuberculosis (PTB) manifest deficiencies in innate cellular immunity. The Tim3/Galectin-9 axis is an important regulator of Th1 cell immunity, leading to Th1 cell apoptosis. Herein, thisstudy aims to clarify the underlying roles of the Tim-3/Galectin-9 axis in T-cell immunity in PTB. Peripheralblood mononuclear cells (PBMCs) were extracted from subjects with and without PTB to examine theexpression of CD4, CD8, CD25, and Tim-3 under the stimulation of Mycobacterium tuberculosis (MTB) andpurified protein derivative (PPD). In addition, the expression of Tim-3 and Galectin-9 in PBMCs was determined. The Tim-3/Galectin-9 axis in the PBMCs was activated or blocked to detect the secreted levels of IFNc, TNF-a, IL-2, and IL-22. MTB stimulation increased the expression of CD4, CD8, CD25, Tim-3, andGalectin-9 in PBMCs. The blockade of Tim-3/Galectin-9 axis resulted in reduced secretion of IFN-c, TNF-a,IL-2, and IL-22 from T-cells. Moreover, Tim-3?CD4?T, Tim-3?CD8?, and Tim-3?CD25?T cells exhibited agreater ability to inhibit the replication of MTB in macrophages. Taken conjointly, the blockade of Tim-3/Galectin-9 axis inhibits the secretion of inflammatory cytokines in T-cells to regulate the T-cell immunity inPTB.
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The drug delivery system with "gatekeeper" is designed to achieve a stable entrapment state of the payload under normal physiological conditions through the gatekeepers. With tumor microenvironment or stimulation of exogenous factors, the gatekeeper is detached or altered to promote the responsive release of the drug. In this paper, we focus on applications of stimuli-responsive linkages and stimuli-responsive groups, and review research progresses of drug delivery system with "gatekeeper" developed over the past 10 years.
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Objective To understand the implementation and application situation of Hierarchical Diagnosis and Treatment Guidelines of Obstetrics in Sichuan Province (version 2016).Methods The sampling survey was performed on the obstetric medical staffs from the various medical institutions in whole province by the questionnaire survey and on-spot investigation,and some tertiary hospital experts were interviewed.Results A total of 2015 valid questionnaires (93.85 ％) were received.Among them,1 369 people (77.7 ％) read the Guidelines;1 752 (95.0 ％) people thought that the Guidelines had practical operability in their hospitals;the causes considering that it had no practical operability were mainly disagree with referral by pregnant women or their family members,cumbersome referral,beds tension in superior hospital,etc.Improper referral sequencing was improper diagnosis and treatment during the referral process,non-standardized referral process,improper referral timing,no referral indications and so on.Conclusion The Guidelines promote the progress of obstetric hierarchical diagnostic and treatment work.It is necessary to strengthen the training of grassroots medical personnel and strengthen the management,supervision and assessment of referral.
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<p><b>OBJECTIVE</b>To study the effect of over-expression of KLF4 on the proliferation and apoptosis of K562 cells.</p><p><b>METHODS</b>The recombinant plasmid with over-expression of KLF4 was transfected into K562 cells by electroporation, then the obtained G418-resistant clones of K562 cells (K562/pEGFP-KLF4) were used as experimental group, and the vector control (K562/pEGFP-C1) and blank K562 cell control groups were set up at the same time. The expression of EGFP-KLF4 fusion protein in K562 cells was observed by fluorescence microscopy; the Western blot was performed to detect the level of KLF4 protein in the cells of each groups, the cell proliferation was tested by methylthiazolyl tetrazolium (MTT) assay, and the cell apoptosis was detected by flow cytometry.</p><p><b>RESULTS</b>Compared with K562/pEGFP-C1 group and blank K562 group, the level of KLF4 protein of K562/ pEGFP-KLF4 cells were significantly increased, and the over-expression ratio reached 74.07%(P<0.05). The proliferation ability of the over-expressing KLF4 K562 cells was inhibited significantly (P<0.05). However, the apoptosis of K562/pEGFP-ILK cells with over-expression of KLF4 was increased (P<0.05).</p><p><b>CONCLUSION</b>A stable over-expressing KLF4 protein K562 cell line with was constructed successfully, and the over-expression of KLF4 can inhibi proliferation and promote apoptosis of K562 cells.</p>
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As a classical external treatment of traditional Chinese medicine, blistering moxibustion has significant curative effect on asthma, rheumatoid arthritis and other immune disorders, which suggests that it has certain immunoregulation effect. When stimulated, skin immune system evokes innate immune or acquired immune systems, including dendritic cells (DC), a type of crucial cell related to acquired immunity. From the classification and function of DC, especially the differentiation, migration and maturation of DC in local skin after blistering moxibustion. This article was to discuss the possible ways of immunoregulation of DC in local skin after blistering moxibustion, so as to provide reference for the study on immunoregulatory mechanism of blistering moxibustion.
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Objective To observe the clinical efficacy of mind-regulating acupuncture in treating primary trigeminal neuralgia.Method Sixty-one patients with primary trigeminal neuralgia were randomized into a treatment group of 31 cases and a control group of 30 cases by using random number table method. The control group was intervened by oral administration of Carbamazepine, while the treatment group was additionally given mind-regulating acupuncture. The pain intensity, pain flare-up frequency and quality of life in the two groups were evaluated before and after the treatment, and the clinical efficacies were compared.Result The total effective rate was 90.3％ in the treatment group, versus 70.0％ in the control group, and the between-group difference was statistically significant (P<0.05). The pain score, pain flare-up frequency and quality of life score after the treatment were significantly different from those before the treatment in both groups (P<0.05); there were no significant between-group differences in comparing the pain score and flare-up frequency after the treatment (P>0.05); there was significant between-group difference in comparing the quality of life score after the treatment(P<0.05). The pain score, pain flare-up frequency and quality of life score at the 6-month follow-up were significantly different from those before and after the treatment in both groups (P<0.05); there were significant between-group differences in comparing the pain score, flare-up frequency and the quality of life score at the 6-month follow-up (P<0.05). Conclusion Mind-regulating acupuncture can produce a significant efficacy in treating primary trigeminal neuralgia and obviously enhance the quality of life.
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Objective To observe the clinical efficacy of mind-regulating acupuncture in treating primary trigeminal neuralgia.Method Sixty-one patients with primary trigeminal neuralgia were randomized into a treatment group of 31 cases and a control group of 30 cases by using random number table method. The control group was intervened by oral administration of Carbamazepine, while the treatment group was additionally given mind-regulating acupuncture. The pain intensity, pain flare-up frequency and quality of life in the two groups were evaluated before and after the treatment, and the clinical efficacies were compared.Result The total effective rate was 90.3％ in the treatment group, versus 70.0％ in the control group, and the between-group difference was statistically significant (P<0.05). The pain score, pain flare-up frequency and quality of life score after the treatment were significantly different from those before the treatment in both groups (P<0.05); there were no significant between-group differences in comparing the pain score and flare-up frequency after the treatment (P>0.05); there was significant between-group difference in comparing the quality of life score after the treatment(P<0.05). The pain score, pain flare-up frequency and quality of life score at the 6-month follow-up were significantly different from those before and after the treatment in both groups (P<0.05); there were significant between-group differences in comparing the pain score, flare-up frequency and the quality of life score at the 6-month follow-up (P<0.05). Conclusion Mind-regulating acupuncture can produce a significant efficacy in treating primary trigeminal neuralgia and obviously enhance the quality of life.
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AIM:To investigate the ability of a metal complex ammonium tetrathiomolybdate (ATTM) to re-lease H2 S and its cytoprotective effect on an oxidative injury model .METHODS:Released H2 S was absorbed in a reaction flask from ATTM dissolved in the cell medium .Staining with dichlorodihydrofluorescein diacetate or rhodamine 123 fol-lowed by photofluorography was conducted for the observation of reactive oxygen species ( ROS) and mitochondrial mem-brane potential (ΔΨm) levels, respectively.Cell viability and release of lactate dehydrogenase (LDH) from the cells were measured with commercial kits.RESULTS:Similar to another H2S donor GYY4137, ATTM had an ability to release H2S in the cell medium in a dose-dependent manner .Treatment of human skin HaCaT cells with ATTM at concentrations of 25~400 μmol/L didn’ t significantly alter cell viability .Exposure of the cells to ultraviolet rays or a ROS donor H 2 O2 in-creased the intracellular ROS levels .Treatment with 400 μmol/L H2 O2 significantly reduced the viability of HaCaT cells (P<0.01).However, before the treatment with H2O2, pretreatment with ATTM at 100 and 200 μmol/L markedly pre-vented the H2O2-induced cell injury (P<0.01).In addition, the treatment with H2O2 triggeredΔΨm loss (P<0.01) and LDH release from the cells (P<0.01).Prior to suffering from H2O2 injury, the preconditioning with 200 μmol/L ATTM significantly improved ΔΨm levels ( P<0.05 ) and attenuated LDH release from the cells ( P<0.01 ) .CONCLUSION:ATTM is capable of releasing H 2 S and protecting human skin cells against oxidative injury .
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<p><b>OBJECTIVE</b>To evaluate the efficacy and safety of Yigan Fupi Decoction (YFD) in the treatment of irritable bowel syndrome with diarrhea (IBS-D) patients.</p><p><b>METHODS</b>A randomized controlled clinical trail was carried out in patients with IBS-D. All patients were randomly assigned to the treatment group (58 cases, treated with YFD) and the control group (58 cases, treated with Pinaverium Bromide Tablet). The treatment course was 4 weeks for all patients. The total effective rate, the stool property and state, the quality of life (QOL), and TCM syndrome efficacy were assessed by IBS bowel symptom severity scale (IBS-BSS), IBS defecation state questionnaire (IBS-DSQ), IBS quality of life questionnaire (IBS-QOL), and traditional Chinese medicine pattern curative effect scoring system (TCM-PES) before and after treatment.</p><p><b>RESULTS</b>There was no statistical difference in the total effective rate between the two groups (82.76% vs. 77.59%, P > 0.05). The treatment group was superior in the total IBS-BSS integral to the control group (P < 0.05). The total effective rate of improving the stool property was better in the treatment group than in the control group (81.03% vs. 72.41%, P < 0.05). Besides, the number of days for emergent defecation among 10 days was less in the treatment group than in the control group (P < 0.05). The improvement of the total IBS-QOL integral and the total integral of TCM syndrome were better in the treatment group than in the control group (P < 0.01). The total effective rate of TCM-PES was better in the treatment group than in the control group (84.48% vs. 70.69%, P < 0.05).</p><p><b>CONCLUSION</b>YFD was effective in the treatment of IBS-D patients of Gan-qi invading Pi syndrome, and could effectively relieve bowel symptoms, improve the stool property and the defecation frequency, elevate their QOL, and attenuate Gan-qi invading Pi syndrome with favorable safety and compliance.</p>
Subject(s)
Adult , Female , Humans , Male , Middle Aged , Diarrhea , Drug Therapy , Drugs, Chinese Herbal , Therapeutic Uses , Irritable Bowel Syndrome , Drug Therapy , Morpholines , Therapeutic Uses , Quality of Life , Treatment OutcomeABSTRACT
BACKGROUND/AIMS: High-fat diets contribute to pancreatic fibrogenesis, but the pathogenesis remains unclear. This study investigated the role of nuclear factor kappa B (NF-kappaB) in high-fat diet-induced pancreatic fibrosis in rats. METHODS: Male Wistar rats were fed a high-fat diet or standard normal chow for 20 weeks. Pancreatic fibrosis was determined by Sirius red staining. Immunohistochemical staining, reverse transcription-polymerase chain reaction and Western blotting were used to identify NF-kappaB-associated genes or protein expressions. RESULTS: Inflammation, fat deposition, pancreatic stellate cell activation and fibrosis were observed in the pancreases of the high-fat diet group. NF-kappaB subunit p65 (NF-kappaB/p65) expression was localized to the nucleus, and intercellular adhesion molecule 1 (ICAM-1) was over-expressed. Pancreatic gene expression levels of NF-kappaB/p65, ICAM-1 and tumor necrosis factor alpha were all elevated significantly in rats fed a high-fat diet compared with control rats. Western blotting also revealed significantly increased levels of ICAM-1 and nuclear NF-kappaB/p65 in rats fed high-fat diets comparison with control rats. CONCLUSIONS: NF-kappaB is involved in high-fat diet-related pancreatic fibrosis.
Subject(s)
Animals , Humans , Male , Rats , Blotting, Western , Diet, High-Fat , Fibrosis , Gene Expression , Inflammation , Intercellular Adhesion Molecule-1 , NF-kappa B , Pancreas , Pancreatic Stellate Cells , Rats, Wistar , Tumor Necrosis Factor-alphaABSTRACT
<p><b>OBJECTIVE</b>To investigate effect of interference therapy induced by epidermal growth factor receptor (EGFR)-antisense cDNA in signal transduction of Hep-2 laryngeal squamous cell carcinoma in vitro.</p><p><b>METHODS</b>AdEasy Vector System was used to construct the recombinant adenovirus vector sense/antisense-pAdEasy-EGFR. The recombinant adenovirus vector introduced EGFR-sense/antisense cDNA fragment into HEK293 cell. The purified recombinant adenovirus sense/antisense-pAdEasy-EGFR transfected Hep-2 cells in vitro. The inhibition of EGFR protein expression and proliferation of Hep-2 cells, the changes of cell cycle and DNA content in Hep-2 cells were examined by MTT, Western blot analysis, flow cytometry essay, and immunocytochemistry respectively.</p><p><b>RESULTS</b>The higher titre sense and antisense mRNA expression recombinant adenovirus containing 1,032 bp EGFR-cDNA was constructed and prepared successfully. When antisense-pAdEasy-EGFR was transferred into Hep-2 cells the inhibition of cell proliferation and EGFR protein expression in Hep-2 cells were investigated effectively.</p><p><b>CONCLUSION</b>The antisense-pAdEasy-EGFR effectively interfere the Hep-2 signal transduction pathway and induce apoptosis which results in inhibiting proliferation of laryngeal squamous cell carcinoma.</p>
Subject(s)
Humans , Adenoviridae , Apoptosis , Carcinoma, Squamous Cell , Cell Cycle , Cell Proliferation , DNA, Complementary , Genetic Vectors , HEK293 Cells , Head and Neck Neoplasms , Laryngeal Neoplasms , ErbB Receptors , Signal Transduction , TransfectionABSTRACT
<p><b>OBJECTIVE</b>To investigate the effect of ethyl pyruvate (EP) on high mobility group box-1 protein (HMGB1) expression in renal tissue and acute kidney injury in rats with delayed resuscitation after thermal injury.</p><p><b>METHODS</b>Seventy-eight Wistar rats subjected to 30% total body surface area full-thickness thermal injury followed with delayed resuscitation were divided into 3 groups: sham group (n = 18), injury group (n = 30) and EP group (n = 30). Renal tissue and blood samples were harvested to determine HMGB1 mRNA as well as its protein expression and renal function parameter at the 8, 24, 72 h post the "injury". HMGB1 mRNA was semi-quantitatively measured by reverse transcription polymerase chain reaction taking GAPDH as an internal standard, and HMGB1 protein expression was determined by Western blot and immunohistochemistry. Blood urea nitrogen (BUN) levels were measured with automatic biochemistry analyzer. The pathological changes of renal tissues were examined using HE staining.</p><p><b>RESULTS</b>Compared with sham controls, both mRNA and protein expressions of HMGB1 in injury group were significantly enhanced in kidneys at 8 - 72 h after thermal injury (P < 0.05), meanwhile serum BUN levels were markedly increased (P < 0.05). Compared with injury group, the renal HMGB1 mRNA and protein expressions were markedly down-regulated in EP group at 8 h, 24 h and 72 h post injury (P < 0.05), respectively, and meanwhile serum BUN levels were reduced significantly (P < 0.05). Inflammatory cell infiltration was found in renal tissues following injury, and kidney injury was markedly alleviated after treatment with EP.</p><p><b>CONCLUSIONS</b>It indicated that HMGB1 appears to be involved in the pathogenesis of post-burn acute kidney injury. Treatment with EP reduces renal HMGB1 expression, and protects against acute kidney injury secondary to delayed resuscitation after major burns.</p>
Subject(s)
Animals , Male , Rats , Acute Disease , Blood Urea Nitrogen , Blotting, Western , Burns , Blood , Therapeutics , Disease Models, Animal , HMGB1 Protein , Genetics , Metabolism , Immunohistochemistry , Kidney , Metabolism , Pathology , Kidney Diseases , Genetics , Metabolism , Pyruvates , Pharmacology , RNA, Messenger , Genetics , Metabolism , Random Allocation , Rats, Wistar , Resuscitation , Reverse Transcriptase Polymerase Chain Reaction , Time FactorsABSTRACT
<p><b>OBJECTIVE</b>To investigate the change in renal high mobility group box-1 protein (HMGB1) levels, and the effect of Chinese traditional medicine-Xuebijing injection on HMGB1 expression as well as acute kidney injury in rats after scald injury.</p><p><b>METHODS</b>Wistar rats were subjected to 30% full-thickness scald injury followed with delayed resuscitation. Totally 78 animals were divided into sham scald group (n=18), scald injury group (n=30), and Xuebijing injection treatment group (n=30). All animals were sacrificed at 8, 24, and 72 hours postburn. Renal tissue and blood samples were harvested to determine HMGB1 mRNA as well as protein expression and organ functional parameters. HMGB1 mRNA level was semi-quantitatively measured by the reverse transcription polymerase chain reaction taking GAPDH as an internal standard, and protein expressions of HMGB1 were detected by both Western blot and immunohistochemistry. Serum creatinine (Cr) contents were measured by automatic biochemistry analyzer. In addition, pathological lesions in kidney were observed under light microscope using HE staining.</p><p><b>RESULTS</b>Compared with sham scald group, both mRNA and protein expressions of HMGB1 were significantly enhanced in the kidney at 8, 24, and 72 hours after scald injury (P<0.05, P<0.01), meanwhile serum Cr contents were markedly increased following acute insults (P<0.05, P<0.01). Treatment with Xuebijing injection could markedly down-regulated renal HMGB1 mRNA expression and protein release at 24 hours and 72 hours (P<0.05, P<0.01), and significantly reduced serum Cr content following scald injury (P<0.05). Many inflammatory cells in renal tissues were observed using light microscope following scald. The histological morphology of kidney lesions was a-HMGB1, a late mediator, appears to be inmeliorated after treatment with Xuebijing injection.</p><p><b>CONCLUSIONS</b>volved in the pathogenesis of excessive inflammatory response and acute kidney damage. Treatment with Xuebijing injection can inhibit HMGB1 synthesis and release in renal tissues, and may prevent the development of acute kidney injury induced by serious scald injury.</p>
Subject(s)
Animals , Rats , Acute Kidney Injury , Metabolism , Burns , Drug Therapy , Metabolism , Drugs, Chinese Herbal , Pharmacology , Therapeutic Uses , HMGB1 Protein , Injections , Kidney , Metabolism , Rats, WistarABSTRACT
<p><b>OBJECTIVE</b>The recombinant adenovirus vector carrying p14ARF gene was constructed for using in the interference therapy in signal transduction of laryngeal squamous cell carcinoma.</p><p><b>METHODS</b>The total cDNA fragment of p14ARF was cloned into the shuttle plasmid pAdTrack-CMV, with the resultant plasmid and the backbone plasmid pAdEasy-1, the homologous recombination took place in the E.Coli BJ5183 and the recombinant adenoviral plasmid was generated. The adenoviruses were packaged and amplified in the 293 cells. Then the viral titer was checked by GFP.</p><p><b>RESULTS</b>The recombinant adenovirus vector carrying p14ARF was constructed successfully. The viral titer was 2.3 x 10(9).</p><p><b>CONCLUSION</b>The recombinant adenovirus vector could introduce p14ARF gene into the laryngeal squamous cell carcinoma line or tumor tissue effectively, which would provide experimental basis for the mechanisms and further study of the interference therapy in signal transduction of laryngeal squamous cell carcinoma.</p>
Subject(s)
Humans , Adenoviridae , Cell Cycle , Genetic Vectors , Plasmids , Recombination, Genetic , Tumor Suppressor Protein p14ARFABSTRACT
<p><b>OBJECTIVE</b>To investigate the potential role of Janus kinase/signal transducer and activator of transcription (JAK/STAT) pathway in regulation of gene expression of high mobility group box-1 protein (HMGB1) in various tissues in rats with sepsis.</p><p><b>METHODS</b>A sepsis model reproduced by cecal ligation and puncture (CLP), and 128 male Wistar rats were randomly divided into normal control group (n = 10), sham operation group (n = 10), CLP group (n = 60), AG490 treatment group (n = 24), and rapamycin (RPM) treatment group (n = 24). At serial time points animals in each group were sacrificed after CLP, then tissue samples were harvested to determine HMGB1 mRNA expression and STAT1/3 DNA binding activity.</p><p><b>RESULTS</b>STAT1 activities increased rapidly in the liver, lungs and small intestine after CLP, peaking at 6 - 12 h, while it increased slowly, and still kept at mild level from 2 to 48 h in the kidneys. Compared with STAT1, lower STAT3 activities were detected only in the liver and lungs, with negative detection in the small intestine and kidneys. HMGB1 mRNA levels significantly increased in liver, lungs and small intestine at various time points after CLP respectively (P < 0.05 or P < 0.01), while they didn't change in the kidneys. Treatment with AG490 could markedly inhibit HMGB1 mRNA expression in the liver and small intestine at 24 and 48 h (P < 0.05 or P < 0.01), and in lungs at 2 h following CLP (P < 0.01). Similarly, treatment with RPM significantly decreased HMGB1 mRNA expression in the lungs at 2, 6, 24 and 48 h, in the liver at 6 and 24 h, and in the small intestine at 24 and 48 h (P < 0.05 or P < 0.01). In addition, STAT1 and STAT3 activities in the liver and lungs were significantly correlated with corresponding tissue HMGB1 mRNA expression.</p><p><b>CONCLUSIONS</b>Peritoneal infection could extensively activate STAT1 and limitedly activate STAT3 in vital organs. Activation of JAK/STAT pathway might be involved in up-regulating the gene expression of HMGB1 and systemic inflammation secondary to severe septic challenge.</p>
Subject(s)
Animals , Male , Rats , Disease Models, Animal , Gene Expression , Physiology , HMGB1 Protein , Genetics , Janus Kinases , Metabolism , RNA, Messenger , Genetics , Random Allocation , Rats, Wistar , STAT Transcription Factors , Metabolism , Sepsis , Genetics , Signal TransductionABSTRACT
<p><b>OBJECTIVE</b>To study the pathogenesis of abnormal bone metabolism in patients with HBV liver cirrhosis.</p><p><b>METHODS</b>NM-300 signal-energy X-ray absorptiometry system was used to measure the bone mineral density (BMD) in 61 liver cirrhosis patients and 30 age-matched healthy controls. The serum levels of 1,25(OH)2D3, parathyroid hormone (PTH), calcitonin (CT), bone gamma-carboxyglutamic acid-containing protein (BGP), IL-1beta, IL-6, tumor necrosis factor (TNF)alpha and urine crosslaps were also detected in these patients.</p><p><b>RESULTS</b>BMD in patients with HBV liver cirrhosis was lower than those of the controls. The serum levels of 1,25(OH)2D3 and BGP in cirrhosis patients were lower than those in the controls, and they were much lower in the osteoporosis (OP) group than in the non-osteoporosis (NOP) group. The PTH and CT were higher significantly in the patients than in the controls. The changes of serum 1,25(OH)2D3 and BGP were correlated with the changes of BMD. The serum levels of IL-1beta, IL-6, TNFalpha and urine crosslaps in cirrhosis patients were higher than those of the controls, and they were much higher in the OP group than in the NOP group. We also found that the serum levels of IL-1beta, IL-6, TNFalpha and urine crosslaps had a negative correlation with BMD.</p><p><b>CONCLUSIONS</b>These data suggest that bone formation is weakened and bone resorption is increased in patients with HBV liver cirrhosis, 1,25(OH)2D3 plays an important role in abnormal bone formation. Elevation of serum IL-1beta, IL-6, TNFalpha can accelerate bone resorption and cause hepatic bone disease (HBD). Taking 1,25(OH)2D3 and reducing the level of IL-1beta, IL-6, TNFalpha may be very important in preventing and treating HBD.</p>
Subject(s)
Adult , Humans , Male , Middle Aged , Bone Density , Bone and Bones , Metabolism , Calcitriol , Pharmacology , Hepatitis B, Chronic , Liver Cirrhosis , OsteoporosisABSTRACT
<p><b>OBJECTIVE</b>To analyze the clinical character, diagnosis and treatment of badly necrotic pyogenic infection in cervical part with pneumatosis of vomica.</p><p><b>METHODS</b>The clinical character, diagnosis and treatment of badly necrotic pyogenic infection in cervical part with pneumatosis of vomica of 46 cases were investigated retrospectively.</p><p><b>RESULTS</b>Lateral and bilateral neck infection cases were 38 and 8 respectively. 30 cases formed primary pyogenic infection in cervical part with pneumatosis of vomica, and 16 did from adjacent sites. Besides the characters of the acute infection, gas storage in deep cervical part abscess was notable. CT and B Ultrasonic examination provided useful informations such as sizes, shapes, capacity, extents of abscess and the relationship between the abscess and vessel or vital organ. Diagnosis puncture and germiculture were performed before and after operation. The results showed that 25 of 46 cases were infected by staphylococcus or streptococcus, and 21 cases did by other bacterium. Exploration and drainage treatments were performed. All cases were cured except 2 died.</p><p><b>CONCLUSION</b>Diagnostic puncture, CT and/or B Ultrasonic examination are essential for diagnosis and presurgical planning. Germiculture provides reliable evidence for finding pathogeny and therapy. The most possibilities of pyogenic infection with pneumatosis of vomica in cervical part are the action of aerogenic bacterium, infection both in cervical part and chest or swallowing movement of pharynx.</p>
Subject(s)
Humans , Abscess , Diagnosis , Microbiology , Therapeutics , Cysts , Diagnosis , Microbiology , Therapeutics , Neck , Pathology , Necrosis , Diagnosis , Microbiology , TherapeuticsABSTRACT
<p><b>OBJECTIVE</b>To extract coumarins from Angelica Dahurica by supercritical CO2.</p><p><b>METHOD</b>Six-factor and three-level orthogonal experimental design was used to optimize the SFE conditions as guided by the content of total coumarins in the extract. Constituents of the coumarins were analyzed by GC-MS, and their relative contents were determined by normalization method of areas.</p><p><b>RESULT</b>Total 15 coumarins were separated, the relative contents of oxyimperatorin, imperatorin and isoimperatorin being up to 42.40%, 22.14% and 12.12% respectively. Optimum extraction process was established: 21 MPa as extraction pressure, 50 degrees C as extraction temperature, 3 h as time for extraction, 20 mesh as pulverized degree, 6.5 MPa as separation pressure and 30 degrees C as separation temperature.</p><p><b>CONCLUSION</b>Changes in extraction pressure, temperature, time, pulverized degree and separation pressure affect the extracting results remarkably.</p>
Subject(s)
Angelica , Chemistry , Carbon Dioxide , Chromatography, Supercritical Fluid , Coumarins , Chemistry , Furocoumarins , Gas Chromatography-Mass Spectrometry , Plants, Medicinal , ChemistryABSTRACT
<p><b>OBJECTIVE</b>To analyze the rationale and feasibility of maxillary reconstruction using free fibula-flexor hallucis longus myofascial flap.</p><p><b>METHODS</b>Nine consecutive cases of maxillary reconstruction using free fibula-flexor hallucis longus myofascial flaps from August of 2002 to August of 2003 were reviewed. Data concerning the operation included description of maxillary defect, design of the fibula flaps, recipient vessel and complications.</p><p><b>RESULTS</b>One flap experienced venous thrombosis after operation, and the flap was salvaged after exploration. All the flaps survived completely with the overall success rate of 100%, as well as the 100% survival of all fibula-flexor hallucis longus myofascial flaps.</p><p><b>CONCLUSIONS</b>Maxillary reconstruction using free fibula-flexor hallucis longus myofascial flap without skin paddle is feasible and reliable.</p>