Time - sensitive effects of Zhuang medicated thread moxibustion on estrogen level in female perimenopausal model rats / Efectos sensibles al tiempo de la moxibustión con hilo medicado de Zhuang sobre el nivel de estrógeno en ratas modelo perimenopáusicas hembras

The present study was conducted to ascertain the estrogenic effect of Zhuang Medicated Thread Moxibustion (ZMTM) and explore its time - sensitive impact on estradiol (E2) in female perimenopausal rats. 40 female rats were randomized into four gr oups: the control, model, ZMTM, and acupuncture groups. The perimenopausal syndrome was induced in the last three groups with a daily subcutaneous dose of 80 mg/kg of 4 - vinylcyclohexene diepoxide for 15 days. Afterward, rats in the model and control group s were fed routinely, while rats in the ZMTM and acupuncture groups were treated with six ZMTM and acupuncture courses, respectively. Results of the study suggested that following the six courses of treatment, the E2 level in the model group was significan tly the lowest, while the regular group was the highest (P < 0.05). There was also a gradual increase in the E2 level of the ZMTM group compared to the model and acupuncture groups, e.g. after the 5th and 6th courses of treatment, their E2 level was signif icantly higher than the model and acupuncture groups. The ZMTM group was better than the model and acupuncture groups. In summary, ZMTM can improve perimenopausal induced rats' estrogen level.

El presen te estudio se llevó a cabo para determinar el efecto estrogénico de la moxibustión con hilo medicado Zhuang (ZMTM) y explorar su impacto sensible al tiempo en el estradiol (E2) en ratas hembras perimenopáusicas. Se dividió al azar una muestra de 40 ratas h embras en cuatro grupos: control, modelo, ZMTM y acupuntura. El síndrome perimenopáusico se indujo en los últimos tres grupos con una dosis subcutánea diaria de 80 mg/kg de diepóxido de 4 - vinilciclohexeno durante 15 días. Después, las ratas en los grupos m odelo y control fueron alimentadas rutinariamente, mientras que las ratas en los grupos ZMTM y acupuntura recibieron seis cursos de ZMTM y acupuntura, respectivamente. Los resultados del estudio sugieren que después de los seis cursos de tratamiento, el ni vel de E2 en el grupo modelo fue significativamente más bajo, mientras que el grupo regular fue más alto ( p < 0,05). También hubo un aumento gradual en el nivel de E2 del grupo ZMTM en comparación con los grupos modelo y acupuntura, por ejemplo, desp ués del quinto y sexto cursos de tratamiento, su nivel de E2 fue significativamente más alto que los grupos modelo y acupuntura. El grupo ZMTM fue mejor que los grupos modelo y acupuntura. En resumen, el ZMTM puede mejorar el nivel de estrógeno de las rata s inducidas por la perimenopausia.

Quantitative Analysis on Immunophenotype of CD34 / 中国实验血液学杂志

OBJECTIVE@#To investigate the quantitative expression of immunophenotype of CD34@*METHODS@#Multi-parameter flow cytometry (FCM) was used to detect the proportion and mean fluorescence intensity (MFI) of each antigen of bone marrow CD34@*RESULTS@#Bone marrow blast cell proportion (P<0.01), RBC level (P<0.01), and Hb level (P<0.05) of high-risk MDS patients were higher, while EPO level (P<0.05) was lower than those of low-risk patients. The proportion of CD34@*CONCLUSION@#The immunophenotype of CD34

Effect of Signal Transduction Pathway Gene Mutations on the One- course Induced Remission Rate and Analysis of Clinical Characteristics in Patients with CBF-AML / 中国实验血液学杂志

OBJECTIVE@#To investigate the effect of other gene mutations outside the fusion gene on the first complete remission (CR) induced by one course of induction chemotherapy in patients with core binding factor-associated acute myeloid leukemia (CBF-AML).@*METHODS@#DNA was extracted from bone marrow or peripheral blood samples of newly diagnosed CBF-AML patients admitted to the Hematology Department of the Second Hospital of Shanxi Medical University from January 2015 to January 2019. Next-generation sequencing was used for detection of 34 kinds of hematologic malignancy-related gene mutations in patients with CBF-AML, the effect of related gene mutations on the first complete remission (CR) rate in one course of induction chemotherapy was analyzed by combineation with clinical characteristics.@*RESULTS@#34 kinds of genes in bone marrow or peripheral blood of 43 patients were detected by high throughput sequencing and the gene mutations were detected in 16 out of 34 genes. The mutation rate of KIT gene was the highest (48.8%), followed by NRAS (16.3%), ASXL1 (16.3%), TET2 (11.6%), CSF3R (9.3%), FLT3 (9.3%), KRAS (7.0%). The detection rates of mutations in different functional genes were as follows: genes related with signal transduction pathway (KIT, FLT3, CSF3R, KRAS, NRAS, JAK2, CALR, SH2B3, CBL) had the highest mutation frequency (72.1% (31/43); epigenetic modification gene mutation frequency was 30.2% (13/43), including ASXL1, TET2, BCOR); transcriptional regulation gene mutation frequency was 7.0% (3/43), including ETV6, RUNX1, GATA2). Splicing factor related gene mutation frequency was 2.3% (1/43), including ZRSR2). The CR rate was 74.4% after one course of induction chemotherapy. At first diagnosis, patients with low expression of WT1 (the median value of WT1 was 788.9) were more likely to get CR (P=0.032) and the RFS of patients who got CR after one course of induction chemotherapy was significantly longer than that of patients without CR [7.6 (2.2-44.1) versus 5.8 (1-19.4), (P=0.048)]. The rate of CR in the signal transduction pathway gene mutation group was significantly lower than that in non-mutation group (64.5% vs 100%) (P=0.045), while the level of serum hydroxybutyrate dehydrogenase (HBDH) was significantly higher than that in non-mutation group [(418 (154-2702) vs 246 (110-1068)] (P=0.032). There was no difference in CD56 expression between the two groups (P=0.053), which was limited to the difference between (≥20%) expression and non-expression. (P=0.048).@*CONCLUSION@#CBF-AML patients with signal transduction pathway gene mutation are often accompanied by high HBDH level and CD56 expression, moreover, the remission rate induced by one course of treatment is low.

Forensic Analysis of 133 Cases of Knee Injuries / 法医学杂志

Objective To discuss the types, characteristics, and the evaluation of disability of knee injuries. Methods The data of 133 cases of knee injury from 2017 to 2019 were collected and statistically analyzed according to the region of injury, the degree of disability, etc. Results One hundred and twenty-five cases of injury were compound, and 8 cases were simple. The incidences of ligament injury, meniscus injury and fracture were 88.72%, 75.19% and 57.89%, respectively. Of the cruciate ligament injuries, 12 cases were posterior cruciate ligament injury while 51 cases were anterior cruciate ligament injury, and the differences between the two kinds of injury had statistical significance （P<0.05）; 32 cases were secondary traumatic arthritis. The rates of disability of knee injuries were 38.35% （Grade Ⅸ and Ⅹ）. Conclusion Compound knee injuries are common, and traumatic arthritis has a relatively high rate. Multiple injuries can affect the stability and weight-bearing of the knee joint. It is suggested that in addition to evaluating the range of motion of knee joint, multiple factors should be considered to assess disability.

Effect of Zhuang medicine medicated thread moxibustion on protomics in serum of postherpetic neuralgia patient with Herpes zoster

The aim of this study was to observe the effect of Zhuang medicine medicated thread moxibustion on protomics in serum of postherpetic neuralgia patient with herpes zoster and discuss the action mechanism of Zhuang medicine medicated thread moxibustion in treating postherpetic neuralgia [PHN]

Methods: patients were divided into three groups in clinic, namely the pre-treatment group [n=20], post-treatment group [n=20] and healthy group [n=20], patients meeting corresponding conditions were recruited in the voluntary principle to accept PHN pain evaluation and protomics tests respectively

Results: compared with the pre-treatment group, visual analogue scale [VAS] in posttreatment group obviously reduced, protomics indexes like MFG-ES, Lymphotoxin beta/TNFSF3, IL-19, Neuritin, NCAM-1/CD56 and PECAM-1/CD31 obviously changed

Conclusions: the Zhuang medicine medicated thread moxibustion can treat the postherpetic neuralgia patient with herpes zoster, its internal mechanism is to possibly change the protomics indexes like MFG-ES, Lymphotoxin beta/TNFSF3, IL-19, Neuritin, NCAM-1/CD56 and PECAM-1/CD31

Trigger effect of hMG and hCG in the treatment of unexplainable non-obstructive azoospermia / 中华男科学杂志

Objective@#To investigate whether the trigger effect of human menopausal gonadotropins (hMG) and human chorionic gonadotropins (hCG) attributes to the treatment of unexplainable non-obstructive azoospermia (NOA).@*METHODS@#We retrospectively analyzed the clinical data about 282 cases of unexplainable NOA treated in the Maternity and Child Health Hospital of Guizhou Province from January 2010 to May 2017. All the patients underwent trigger treatment by intramuscular injection of hMG at 75 IU 3 times a week for 2 weeks, followed by hCG at 2 000 IU twice a week for another 2 weeks, and meanwhile took vitamin E, Levocarnitine and Tamoxifen as an adjunctive therapy. The treatment lasted 3－12 months.@*RESULTS@#Fifty-eight of the 255 patients that completed the treatment were found with sperm in the semen after treatment, all with severe oligoasthenospermia. Forty-seven of the 58 cases received assisted reproductive technology (ART), of which 18 achieved clinical pregnancy. Semen centrifugation revealed no sperm in the other cases, of which 6 were found with epididymal sperm at epididymal and testicular biopsy after treatment and 3 of them achieved clinical pregnancy after ART. Sperm was found in the semen or at epididymal or testicular biopsy in 64 of the patients after treatment, with an effectiveness rate of 25.1%.@*CONCLUSIONS@#Trigger treatment by injection of hMG and hCG combined with adjunctive oral medication has a certain effect on unexplainable NOA.

Expression of CD25 in acute B cell lymphoblastic leukemia and its clinical significance / 中国实验血液学杂志

This study was purposed to investigate the relation of CD25 with the acute B cell lymphoblastic leukemia (B-ALL) and its clinical significance. A totol of 88 newly diagnosed B-ALL patients were enrolled in this study. The immunophenotype of leukemic myeloblasts were detected by flow cytometry, including interleukin 2 receptor α chain (CD25), β chain (CD122), γ chain (CD132), CD19, CD20, CD10, CD34, CDIgM, CD79a, CD22 and CDTDT. The expression of BCR/ABL fusion gene was detected by qualitative PCR. The expression of IL2RA (CD25 gene) was detected by real-time qualitative RT-PCR. The results showed that there was no significant statistical difference in WBC count, Hb level, PLT count, marrow blast rate, peripheral blast rate, hepato-lienal infiltration, lymph node infiltration, levels of CD10, CD20, CD22, CD34, CD79a, CDTDT, CDIgM expression between B-ALL patients with CD25(+) and B-ALL patients with CD25(-), while the CD19 expression level in B-ALL patients with CD25(+) was higher than that in B-ALL patients with CD25(-). Out of 88 B-ALL patients, 21 patients showed BCR/ABL(+)(21/88) and their CD25(+) expression level was 66.7% (14/21); 67 patients showed BCR/ABL(-) and their CD25(+) expression level was 4.5% (3/67), there was statistical difference between these two groups (P < 0.05), but the expression level of IL2RA mRNA was not statistical different between CD25(+) and CD25(-) groups (P > 0.05). Among 21 BCR/ABL(+) B-ALL patients the remission rate and relapsed rate were not statistical different between CD25(+) an CD25(-) groups.In BCR/ABL(+) B-ALL patients 8 patients relapsed, the relapsed rate was 38.1% (8/21). In BCR/ABL(-) B-ALL patients 9 patients relapsed, the relapse rate was 13.4% (9/67), there was statistical difference between BCR/ABL(+) and BCR/ABL(-) two groups (P < 0.05). In BCR/ABL(+) group the RFS (relapse free survival) was 21 months, in BCR/ABL(+) CD25(+) patients the RFS was 15 months, while in BCR/ABL(+) CD25(-) patients the RFS was 21 months, in BCR/ABL(-) CD25(-) patients, the RFS was 24 months. It is concluded that the CD25 expresses at high level in B-ALL patients with BCR/ABL(+), which may serve as a predictive marker for the presence of BCR/ABL fusion gene, and relates with relapse, CD25(+) may serve as a adjuvant indicator for poor prognosis.

Effect of Nrf2 and TrxR on proliferation of chronic myeloid leukemia cell and its mechanism / 中华血液学杂志

<p><b>OBJECTIVE</b>To explore the effect of nuclear factor erythroid-2 related factor 2 (Nrf2) and thioredoxin reductase (TrxR) gene on proliferation of chronic myeloid leukemia (CML) line cells and its mechanism.</p><p><b>METHODS</b>Four interfering sequences of Nrf2 and one negative control sequence were designed and synthesised based on the principle of target sequence of siRNA, then constructed lentivirus vectors, which were transfected into K562 cell lines. The transfection effect was observed by laser scanning confocal microscope (LSCM) and flow cytometer (FCM); The depressing effect of siRNA was analyzed by real-time PCR. The cell proliferation inhibiting rate was measured with CCK-8 assay, the apoptotic rate by Annexin V-PE/PI with FCM and the apoptotic morphology of cells by LSCM.</p><p><b>RESULTS</b>The transfection efficiency of lentivirus was 65%. One cell line K562-C3 which significantly inhibited Nrf2 mRNA was obtained by real-time PCR, Nrf2 relative quantitation (RQ) expressions were 1.003±0.093 and 0.344±0.032 in the control group and K562-C3 respectively; TrxR expression also decreased with RQ as 1.090±0.549 and 0.395±0.029 respectively. The cellular proliferation inhibition rates of K562-C3 were (4.74±0.39)%, (6.13±1.78)% and (25.36±3.77)%, respectively at 24, 48 and 72 h. The apoptotic rate induced by K562-C3 (29.9%) at 72 hours was obviously higher than in the control group (7.9%). The Annexin V-PE positive K562-C3 cells presented the following apoptotic characteristics, such as karyopyknosis, nuclear fragmentation and apoptotic bodies observed by LSCM.</p><p><b>CONCLUSION</b>Nrf2 specific siRNA could repress its expression at the cellular level and down-regulate the expression of its downstream antioxidant enzyme, such as TrxR, which lead to increased apoptotic rate and decreased cell proliferation.</p>

Establishment of diagnostic model to monitor minimal residual disease of acute promyelocytic leukemia by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry / 中华血液学杂志

<p><b>OBJECTIVE</b>To screen the potential protein biomarkers in minimal residual disease (MRD) of the acute promyelocytic leukemia (APL) by comparison of differentially expressed serum protein between APL patients at diagnosis and after complete remission (CR) and healthy controls, and to establish and verify a diagnostic model.</p><p><b>METHODS</b>Serum proteins from 36 cases of primary APL, 29 cases of APL during complete remission and 32 healthy controls were purified by magnetic beads and then analyzed by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS). The spectra were analyzed statistically using FlexAnalysis(TM) and ClinProt(TM) software.</p><p><b>RESULTS</b>Two prediction model of primary APL/healthy control, primary APL/APL CR were developed. Thirty four statistically significant peptide peaks were obtained with the m/z value ranging from 1000 to 10 000 (P < 0.001) in primary APL/healthy control model. Seven statistically significant peptide peaks were obtained in primary APL/APL CR model (P < 0.001). Comparison of the protein profiles between the two models, three peptides with m/z 4642, 7764 and 9289 were considered as the protein biomarker of APL MRD. A diagnostic pattern for APL CR using m/z 4642 and 9289 was established. Blind validation yielded correct classification of 6 out of 8 cases.</p><p><b>CONCLUSIONS</b>The MALDI-TOF MS analysis of APL patients serum protein can be used as a promising dynamic method for MRD detection and the two peptides with m/z 4642 and 9289 may be better biomarkers.</p>

Repair of circumferential wound in the wrist region due to high-voltage electrical burn using combined abdominal axial pattern flaps / 中华烧伤杂志

<p><b>OBJECTIVE</b>To explore the method for repairing circumferential wound in the wrist region due to high-voltage electrical burn.</p><p><b>METHODS</b>Six patients with circumferential wound in the wrist region after high-voltage electrical burn were admitted to our hospital from January 2009 to December 2011. After debridement, wounds in the wrist were repaired with combined abdominal axial pattern flaps. The wound of wrist on the flexor aspect was repaired with paraumbilical flap carrying a portion of rectus abdominis that filled the wound cavity of the wrist on the flexor aspect. The wound of wrist on the dorsal aspect was repaired with lower abdominal flap. Pedicle division was performed 4 - 5 weeks post surgery. Some donor sites were sutured directly, and the others were closed by skin grafting after the suture of anterior sheath.</p><p><b>RESULTS</b>Three flaps survived. Liquefaction necrosis of tissue was observed under two flaps, and they were healed after debridement. Radial artery embolism of wrist occurred in one flap when pedicle division was performed 5 weeks post surgery, and it was healed by a transplantation of a segment of the great saphenous vein to reconstruct radial artery right after debridement. Patients were followed up for 6 - 12 months, and satisfactory appearance and function of the flaps were observed.</p><p><b>CONCLUSIONS</b>It is a feasible option to repair circumferential wound in the wrist region due to high-voltage electrical burn by using paraumbilical flap carrying a portion of rectus abdominis muscle combined with lower abdominal flap.</p>

Expressions of Th17 cells and interleukin 17 in patients with primary immune thrombocytopenia and their clinical significance / 中国实验血液学杂志

The aim of this study was to detect the rate of T-helper (Th)17 cells and interleukin (IL)-17 level in peripheral blood of patients with primary immune thrombocytopenia (ITP) and to explore their clinical significance. The proportion of Th17 cells from 48 patients with ITP and 28 healthy controls was detected by flow cytometry, and the IL-17 level was evaluated by enzyme-linked immunosorbent assay (ELISA). The results showed that the percentage of Th17 cells in ITP group was (1.40 ± 1.35)%, which was significantly higher than that in healthy control group (P < 0.05), but in the glucocorticoid hormone-treated group it was significantly lower than that in treated group without glucocorticoid hormone(P < 0.05). The level of IL-17 expressed by Th17 cells in ITP patients was (19.624 ± 5.187) pg/ml, which was higher than that in the healthy control group (P < 0.05), it was lower in the glucocorticoid hormone treated group than that in treated group without glucocorticoid hormone, but there was no statistically significant difference between the glucocorticoid treated and treated group without glucocorticoid hormone (P > 0.05). It is concluded that the Th17 cells may involve in the pathogenesis of ITP, and the glucocorticoid hormone probably plays a therapeutic role through inhibiting Th17 cells.

Large-area burns with pandrug-resistant Pseudomonas aeruginosa infection and respiratory failure / 中华医学杂志(英文版)

<p><b>BACKGROUND</b>Infection due to pandrug-resistant Pseudomonas aeruginosa (PDRPA) has become a challenge in clinical practice. The aim of this research was to summarize the treatment of large-area burns (60% - 80%) with PDRPA infection and respiratory failure in our hospital over the last two years, and to explore a feasible treatment protocol for such patients.</p><p><b>METHODS</b>We retrospectively analyzed the treatment of five patients with large-area burns accompanied by PDRPA infection and respiratory failure transferred to our hospital from burn units in hospitals in other Chinese cities from January 2008 to February 2010. Before PDRPA infection occurred, all five patients had open wounds with large areas of granulation because of the failure of surgery and dissolving of scar tissue; they had also undergone long-term administration of carbapenems. This therapy included ventilatory support, rigorous repair of wounds, and combined antibiotic therapy targeted at drug-resistance mechanisms, including carbapenems, ciprofloxacin, macrolide antibiotics and β-lactamase inhibitors.</p><p><b>RESULTS</b>Four patients recovered from burns and one died after therapy.</p><p><b>CONCLUSIONS</b>First, compromised immunity caused by delayed healing of burn wounds in patients with large-area burns and long-term administration of carbapenems may be the important factors in the initiation and progression of PDRPA infection. Second, if targeted at drug-resistance mechanisms, combined antibiotic therapy using carbapenems, ciprofloxacin, macrolide antibiotics and β-lactamase inhibitors could effectively control PDRPA infection. Third, although patients with large-area burns suffered respiratory failure and had high risks from anesthesia and surgery, only aggressive skin grafting with ventilatory support could control the infection and save lives. Patients may not be able to tolerate a long surgical procedure, so the duration of surgery should be minimized, and the frequency of surgery increased.</p>

Evaluation of the cytotoxicity of cell free dermal substitutes using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide method / 中华医学杂志(英文版)

<p><b>BACKGROUND</b>The cytotoxicity of dermal substitutes may be increased by the very processes used to deplete the cells. The present research aimed to investigate the method for monitoring the cytotoxicity of cell-free dermal substitutes using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) method.</p><p><b>METHODS</b>The cytotoxicity of four dermal substitutes was evaluated using the MTT method according to the standards set by the Chinese State Food and Drug Administration (SFDA). Swine acellular dermal matrix (SADM) and goat acellular dermal matrix (GADM) were produced using a repeated freeze-thaw method. Human dermal matrix glutaraldehyde composite (HADM-G) and SADM cross-linked with glutaraldehyde (SADM-G) were produced using conventional methods.</p><p><b>RESULTS</b>The cytotoxicity of all dermal substitutes ranged from Grade 0 to Grade 1, meeting the standards of the Chinese FDA. The OD(490) of both SADM and GADM was higher than that of either HADM-G or SADM-G (P < 0.05).</p><p><b>CONCLUSION</b>Dermal substitutes produced by the freeze-thaw method are less cytotoxic than those produced using conventional methods.</p>

Quantification of type I and III collagen content in normal human skin in different age groups / 中华烧伤杂志

<p><b>OBJECTIVE</b>To quantify the content of type I, III collagen and their ratio in normal human skin of different age, and to explore the regulation of changes.</p><p><b>METHODS</b>The normal human skin specimens were obtained from 6 spontaneously aborted fetus and 56 burn patients of different ages, including infants (newborn -3 years), pre-school group ( > 3, < or =7 years), adolescent group ( >7, < or = 18 years), youth and middle age group ( > 18, < or = 50 years), and elderly group ( > 50 years), were studied. The total collagen content were determined by hydroxyproline method. The contents of type I, Ill collagen and their ratio were examined by immunohistochemistry.</p><p><b>RESULTS</b>The total collagen content decreased along with increase in age, and it was highest in fetus [(543 +/- 13) microg/g]. The ratio between type I and Ill collagen increased along with increase in age. The content of type III collagen was highest in fetus [(278 +/- 7) microg/g], and it decreased along with increase in age. The content of type I collagen content was [(265 +/- 7) microg/g] in fetus, and it was increased slightly in infant and pre-school groups, then decreased along with advance in age.</p><p><b>CONCLUSION</b>Decomposition of type III collagen in normal human skin may exceed its synthesis after birth immediately, leading to its reduction. Synthesis of type I collagen in normal human skin is dominant before 8 years old, and it shows an opposite tendency afterwards.</p>